Pre-Algebra, Student Edition
Pre-Algebra, Student Edition
1st Edition
ISBN: 9780078885150
Author: McGraw-Hill
Publisher: Glencoe/McGraw-Hill
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Concept explainers

Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 …
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experime…
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Question
Book Icon
Chapter 7.4, Problem 10CYU
To determine

To estimate: the given expression

Expert Solution & Answer
Check Mark

Answer to Problem 10CYU

The required solution is 8.

Explanation of Solution

Given:

40% of 19

Calculation:

The expression is 40% of 19 which is about 40% of 20.

  40% of 20 = 25of 20         Think: 40% = 25                  = 8                   Think: 25of 20 is about 8.

Conclusion:

Hence, the estimation of 40% of 19 is about 8.

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Chapter 7.4, Problem 9CYU
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Chapter 7.4, Problem 11CYU

Chapter 7 Solutions

Pre-Algebra, Student Edition

Ch. 7.1 - Prob. 1ACYPCh. 7.1 - Prob. 1BCYPCh. 7.1 - Prob. 2ACYPCh. 7.1 - Prob. 2BCYPCh. 7.1 - Prob. 3ACYPCh. 7.1 - Prob. 3BCYPCh. 7.1 - Prob. 4CYPCh. 7.1 - Prob. 5CYPCh. 7.1 - Prob. 1CYUCh. 7.1 - Prob. 2CYU
Ch. 7.1 - Prob. 3CYUCh. 7.1 - Prob. 4CYUCh. 7.1 - Prob. 5CYUCh. 7.1 - Prob. 6CYUCh. 7.1 - Prob. 7CYUCh. 7.1 - Prob. 8CYUCh. 7.1 - Prob. 9CYUCh. 7.1 - Prob. 10CYUCh. 7.1 - Prob. 11PPSCh. 7.1 - Prob. 12PPSCh. 7.1 - Prob. 13PPSCh. 7.1 - Prob. 14PPSCh. 7.1 - Prob. 15PPSCh. 7.1 - Prob. 16PPSCh. 7.1 - Prob. 17PPSCh. 7.1 - Prob. 18PPSCh. 7.1 - Prob. 19PPSCh. 7.1 - Prob. 20PPSCh. 7.1 - Prob. 21PPSCh. 7.1 - Prob. 22PPSCh. 7.1 - Prob. 23PPSCh. 7.1 - Prob. 24PPSCh. 7.1 - Prob. 25PPSCh. 7.1 - Prob. 26PPSCh. 7.1 - Prob. 27PPSCh. 7.1 - Prob. 28PPSCh. 7.1 - Prob. 29PPSCh. 7.1 - Prob. 30PPSCh. 7.1 - Prob. 31PPSCh. 7.1 - Prob. 32PPSCh. 7.1 - Prob. 33PPSCh. 7.1 - Prob. 34PPSCh. 7.1 - Prob. 35PPSCh. 7.1 - Prob. 36PPSCh. 7.1 - Prob. 37PPSCh. 7.1 - Prob. 38PPSCh. 7.1 - Prob. 39PPSCh. 7.1 - Prob. 40PPSCh. 7.1 - Prob. 41PPSCh. 7.1 - Prob. 42PPSCh. 7.1 - Prob. 43PPSCh. 7.1 - Prob. 44PPSCh. 7.1 - Prob. 45HPCh. 7.1 - Prob. 46HPCh. 7.1 - Prob. 47HPCh. 7.1 - Prob. 48HPCh. 7.1 - Prob. 49HPCh. 7.1 - Prob. 50HPCh. 7.1 - Prob. 51STPCh. 7.1 - Prob. 52STPCh. 7.1 - Prob. 53STPCh. 7.1 - Prob. 54STPCh. 7.1 - Prob. 55SRCh. 7.1 - Prob. 56SRCh. 7.1 - Prob. 57SRCh. 7.1 - Prob. 58SRCh. 7.1 - Prob. 59SRCh. 7.1 - Prob. 60SRCh. 7.1 - Prob. 61SRCh. 7.1 - Prob. 62SRCh. 7.1 - Prob. 63SCh. 7.1 - Prob. 64SCh. 7.1 - Prob. 65SCh. 7.1 - Prob. 66SCh. 7.2 - Prob. 1ACYPCh. 7.2 - Prob. 1BCYPCh. 7.2 - Prob. 2ACYPCh. 7.2 - Prob. 2BCYPCh. 7.2 - Prob. 3ACYPCh. 7.2 - Prob. 3BCYPCh. 7.2 - Prob. 3CCYPCh. 7.2 - Prob. 4ACYPCh. 7.2 - Prob. 4BCYPCh. 7.2 - Prob. 4CCYPCh. 7.2 - Prob. 4DCYPCh. 7.2 - Prob. 5CYPCh. 7.2 - Prob. 1CYUCh. 7.2 - Prob. 2CYUCh. 7.2 - Prob. 3CYUCh. 7.2 - Prob. 4CYUCh. 7.2 - Prob. 5CYUCh. 7.2 - Prob. 6CYUCh. 7.2 - Prob. 7CYUCh. 7.2 - Prob. 8CYUCh. 7.2 - Prob. 9CYUCh. 7.2 - Prob. 10PPSCh. 7.2 - Prob. 11PPSCh. 7.2 - Prob. 12PPSCh. 7.2 - Prob. 13PPSCh. 7.2 - Prob. 14PPSCh. 7.2 - Prob. 15PPSCh. 7.2 - Prob. 16PPSCh. 7.2 - Prob. 17PPSCh. 7.2 - Prob. 18PPSCh. 7.2 - Prob. 19PPSCh. 7.2 - Prob. 20PPSCh. 7.2 - Prob. 21PPSCh. 7.2 - Prob. 22PPSCh. 7.2 - Prob. 23PPSCh. 7.2 - Prob. 24PPSCh. 7.2 - Prob. 25PPSCh. 7.2 - Prob. 26PPSCh. 7.2 - Prob. 27PPSCh. 7.2 - Prob. 28PPSCh. 7.2 - Prob. 29PPSCh. 7.2 - Prob. 30PPSCh. 7.2 - Prob. 31PPSCh. 7.2 - Prob. 32PPSCh. 7.2 - Prob. 33PPSCh. 7.2 - Prob. 34PPSCh. 7.2 - Prob. 35PPSCh. 7.2 - Prob. 36PPSCh. 7.2 - Prob. 37PPSCh. 7.2 - Prob. 38PPSCh. 7.2 - Prob. 39PPSCh. 7.2 - Prob. 40PPSCh. 7.2 - Prob. 41PPSCh. 7.2 - Prob. 42PPSCh. 7.2 - Prob. 43HPCh. 7.2 - Prob. 44HPCh. 7.2 - Prob. 45HPCh. 7.2 - Prob. 46HPCh. 7.2 - Prob. 47HPCh. 7.2 - Prob. 48STPCh. 7.2 - Prob. 49STPCh. 7.2 - Prob. 50STPCh. 7.2 - Prob. 51STPCh. 7.2 - Prob. 52SRCh. 7.2 - Prob. 53SRCh. 7.2 - Prob. 54SRCh. 7.2 - Prob. 55SRCh. 7.2 - Prob. 56SRCh. 7.2 - Prob. 57SRCh. 7.2 - Prob. 58SRCh. 7.2 - Prob. 59SRCh. 7.2 - Prob. 60SRCh. 7.2 - Prob. 61SRCh. 7.2 - Prob. 62SCh. 7.2 - Prob. 63SCh. 7.2 - Prob. 64SCh. 7.2 - Prob. 65SCh. 7.2 - Prob. 66SCh. 7.2 - Prob. 67SCh. 7.3 - Prob. 1ACYPCh. 7.3 - Prob. 1BCYPCh. 7.3 - Prob. 2ACYPCh. 7.3 - Prob. 2BCYPCh. 7.3 - Prob. 3ACYPCh. 7.3 - Prob. 3BCYPCh. 7.3 - Prob. 4CYPCh. 7.3 - Prob. 1CYUCh. 7.3 - Prob. 2CYUCh. 7.3 - Prob. 3CYUCh. 7.3 - Prob. 4CYUCh. 7.3 - Prob. 5CYUCh. 7.3 - Prob. 6CYUCh. 7.3 - Prob. 7CYUCh. 7.3 - Prob. 8PPSCh. 7.3 - Prob. 9PPSCh. 7.3 - Prob. 10PPSCh. 7.3 - Prob. 11PPSCh. 7.3 - Prob. 12PPSCh. 7.3 - Prob. 13PPSCh. 7.3 - Prob. 14PPSCh. 7.3 - Prob. 15PPSCh. 7.3 - Prob. 16PPSCh. 7.3 - Prob. 17PPSCh. 7.3 - Prob. 18PPSCh. 7.3 - Prob. 19PPSCh. 7.3 - Prob. 20PPSCh. 7.3 - Prob. 21PPSCh. 7.3 - Prob. 22PPSCh. 7.3 - Prob. 23PPSCh. 7.3 - Prob. 24PPSCh. 7.3 - Prob. 25PPSCh. 7.3 - Prob. 26PPSCh. 7.3 - Prob. 27PPSCh. 7.3 - Prob. 28PPSCh. 7.3 - Prob. 29PPSCh. 7.3 - Prob. 30PPSCh. 7.3 - Prob. 31PPSCh. 7.3 - Prob. 32PPSCh. 7.3 - Prob. 33PPSCh. 7.3 - Prob. 34PPSCh. 7.3 - Prob. 35PPSCh. 7.3 - Prob. 36HPCh. 7.3 - Prob. 37HPCh. 7.3 - Prob. 38HPCh. 7.3 - Prob. 39HPCh. 7.3 - Prob. 40HPCh. 7.3 - Prob. 41HPCh. 7.3 - Prob. 42HPCh. 7.3 - Prob. 43STPCh. 7.3 - Prob. 44STPCh. 7.3 - Prob. 45STPCh. 7.3 - Prob. 46STPCh. 7.3 - Prob. 47SRCh. 7.3 - Prob. 48SRCh. 7.3 - Prob. 49SRCh. 7.3 - Prob. 50SRCh. 7.3 - Prob. 51SRCh. 7.3 - Prob. 52SRCh. 7.3 - Prob. 53SRCh. 7.3 - Prob. 54SRCh. 7.3 - Prob. 55SRCh. 7.3 - Prob. 56SRCh. 7.3 - Prob. 57SRCh. 7.3 - Prob. 58SRCh. 7.3 - Prob. 59SCh. 7.3 - Prob. 60SCh. 7.3 - Prob. 61SCh. 7.3 - Prob. 62SCh. 7.4 - Prob. 1ACYPCh. 7.4 - Prob. 1BCYPCh. 7.4 - Prob. 2ACYPCh. 7.4 - Prob. 2BCYPCh. 7.4 - Prob. 3CYPCh. 7.4 - Prob. 4ACYPCh. 7.4 - Prob. 4BCYPCh. 7.4 - Prob. 4CCYPCh. 7.4 - Prob. 4DCYPCh. 7.4 - Prob. 5CYPCh. 7.4 - Prob. 1CYUCh. 7.4 - Prob. 2CYUCh. 7.4 - Prob. 3CYUCh. 7.4 - Prob. 4CYUCh. 7.4 - Prob. 5CYUCh. 7.4 - Prob. 6CYUCh. 7.4 - Prob. 7CYUCh. 7.4 - Prob. 8CYUCh. 7.4 - Prob. 9CYUCh. 7.4 - Prob. 10CYUCh. 7.4 - Prob. 11CYUCh. 7.4 - Prob. 12CYUCh. 7.4 - Prob. 13CYUCh. 7.4 - Prob. 14CYUCh. 7.4 - Prob. 15PPSCh. 7.4 - Prob. 16PPSCh. 7.4 - Prob. 17PPSCh. 7.4 - Prob. 18PPSCh. 7.4 - Prob. 19PPSCh. 7.4 - Prob. 20PPSCh. 7.4 - Prob. 21PPSCh. 7.4 - Prob. 22PPSCh. 7.4 - Prob. 23PPSCh. 7.4 - Prob. 24PPSCh. 7.4 - Prob. 25PPSCh. 7.4 - Prob. 26PPSCh. 7.4 - Prob. 27PPSCh. 7.4 - Prob. 28PPSCh. 7.4 - Prob. 29PPSCh. 7.4 - Prob. 30PPSCh. 7.4 - Prob. 31PPSCh. 7.4 - Prob. 32PPSCh. 7.4 - Prob. 33PPSCh. 7.4 - Prob. 34PPSCh. 7.4 - Prob. 35PPSCh. 7.4 - Prob. 36PPSCh. 7.4 - Prob. 37PPSCh. 7.4 - Prob. 38PPSCh. 7.4 - Prob. 39PPSCh. 7.4 - Prob. 40PPSCh. 7.4 - Prob. 41PPSCh. 7.4 - Prob. 42PPSCh. 7.4 - Prob. 43PPSCh. 7.4 - Prob. 44PPSCh. 7.4 - Prob. 45HPCh. 7.4 - Prob. 46HPCh. 7.4 - Prob. 47HPCh. 7.4 - Prob. 48STPCh. 7.4 - Prob. 49STPCh. 7.4 - Prob. 50STPCh. 7.4 - Prob. 51STPCh. 7.4 - Prob. 52SRCh. 7.4 - Prob. 53SRCh. 7.4 - Prob. 54SRCh. 7.4 - Prob. 55SRCh. 7.4 - Prob. 56SRCh. 7.4 - Prob. 57SRCh. 7.4 - Prob. 58SCh. 7.4 - Prob. 59SCh. 7.4 - Prob. 60SCh. 7.4 - Prob. 61SCh. 7.4 - Prob. 62SCh. 7.4 - Prob. 63SCh. 7.5 - Prob. 1ACYPCh. 7.5 - Prob. 1BCYPCh. 7.5 - Prob. 2ACYPCh. 7.5 - Prob. 2BCYPCh. 7.5 - Prob. 3ACYPCh. 7.5 - Prob. 3BCYPCh. 7.5 - Prob. 4CYPCh. 7.5 - Prob. 5CYPCh. 7.5 - Prob. 1CYUCh. 7.5 - Prob. 2CYUCh. 7.5 - Prob. 3CYUCh. 7.5 - Prob. 4CYUCh. 7.5 - Prob. 5CYUCh. 7.5 - Prob. 6CYUCh. 7.5 - Prob. 7CYUCh. 7.5 - Prob. 8CYUCh. 7.5 - Prob. 9PPSCh. 7.5 - Prob. 10PPSCh. 7.5 - Prob. 11PPSCh. 7.5 - Prob. 12PPSCh. 7.5 - Prob. 13PPSCh. 7.5 - Prob. 14PPSCh. 7.5 - Prob. 15PPSCh. 7.5 - Prob. 16PPSCh. 7.5 - Prob. 17PPSCh. 7.5 - Prob. 18PPSCh. 7.5 - Prob. 19PPSCh. 7.5 - Prob. 20PPSCh. 7.5 - Prob. 21PPSCh. 7.5 - Prob. 22PPSCh. 7.5 - Prob. 23PPSCh. 7.5 - Prob. 24PPSCh. 7.5 - Prob. 25PPSCh. 7.5 - Prob. 26PPSCh. 7.5 - Prob. 27PPSCh. 7.5 - Prob. 28PPSCh. 7.5 - Prob. 29PPSCh. 7.5 - Prob. 30HPCh. 7.5 - Prob. 31HPCh. 7.5 - Prob. 32HPCh. 7.5 - Prob. 33HPCh. 7.5 - Prob. 34HPCh. 7.5 - Prob. 35STPCh. 7.5 - Prob. 36STPCh. 7.5 - Prob. 37STPCh. 7.5 - Prob. 38SRCh. 7.5 - Prob. 39SRCh. 7.5 - Prob. 40SRCh. 7.5 - Prob. 41SRCh. 7.5 - Prob. 42SRCh. 7.5 - Prob. 43SRCh. 7.5 - Prob. 44SRCh. 7.5 - Prob. 45SRCh. 7.5 - Prob. 46SRCh. 7.5 - Prob. 47SRCh. 7.5 - Prob. 48SCh. 7.5 - Prob. 49SCh. 7.5 - Prob. 50SCh. 7.5 - Prob. 51SCh. 7.5 - Prob. 52SCh. 7.5 - Prob. 53SCh. 7.5 - Prob. 54SCh. 7.5 - Prob. 55SCh. 7.6 - Prob. 1CYPCh. 7.6 - Prob. 2CYPCh. 7.6 - Prob. 3CYPCh. 7.6 - Prob. 4CYPCh. 7.6 - Prob. 1CYUCh. 7.6 - Prob. 2CYUCh. 7.6 - Prob. 3CYUCh. 7.6 - Prob. 4CYUCh. 7.6 - Prob. 5CYUCh. 7.6 - Prob. 6CYUCh. 7.6 - Prob. 7PPSCh. 7.6 - Prob. 8PPSCh. 7.6 - Prob. 9PPSCh. 7.6 - Prob. 10PPSCh. 7.6 - Prob. 11PPSCh. 7.6 - Prob. 12PPSCh. 7.6 - Prob. 13PPSCh. 7.6 - Prob. 14PPSCh. 7.6 - Prob. 15PPSCh. 7.6 - Prob. 16PPSCh. 7.6 - Prob. 17PPSCh. 7.6 - Prob. 18PPSCh. 7.6 - Prob. 19PPSCh. 7.6 - Prob. 20PPSCh. 7.6 - Prob. 21PPSCh. 7.6 - Prob. 22PPSCh. 7.6 - Prob. 23PPSCh. 7.6 - Prob. 24PPSCh. 7.6 - Prob. 25PPSCh. 7.6 - Prob. 26PPSCh. 7.6 - Prob. 27PPSCh. 7.6 - Prob. 28PPSCh. 7.6 - Prob. 29PPSCh. 7.6 - Prob. 30PPSCh. 7.6 - Prob. 31PPSCh. 7.6 - Prob. 32PPSCh. 7.6 - Prob. 33PPSCh. 7.6 - Prob. 34PPSCh. 7.6 - Prob. 35HPCh. 7.6 - Prob. 36HPCh. 7.6 - Prob. 37HPCh. 7.6 - Prob. 38HPCh. 7.6 - Prob. 39HPCh. 7.6 - Prob. 40STPCh. 7.6 - Prob. 41STPCh. 7.6 - Prob. 42STPCh. 7.6 - Prob. 43STPCh. 7.6 - Prob. 44SRCh. 7.6 - Prob. 45SRCh. 7.6 - Prob. 46SRCh. 7.6 - Prob. 47SRCh. 7.6 - Prob. 48SRCh. 7.6 - Prob. 49SRCh. 7.6 - Prob. 50SRCh. 7.6 - Prob. 51SRCh. 7.6 - Prob. 52SRCh. 7.6 - Prob. 53SCh. 7.6 - Prob. 54SCh. 7.6 - Prob. 55SCh. 7.6 - Prob. 56SCh. 7.7 - Prob. 1ACYPCh. 7.7 - Prob. 1BCYPCh. 7.7 - Prob. 2CYPCh. 7.7 - Prob. 3CYPCh. 7.7 - Prob. 1CYUCh. 7.7 - Prob. 2CYUCh. 7.7 - Prob. 3CYUCh. 7.7 - Prob. 4CYUCh. 7.7 - Prob. 5CYUCh. 7.7 - Prob. 6CYUCh. 7.7 - Prob. 7CYUCh. 7.7 - Prob. 8CYUCh. 7.7 - Prob. 9CYUCh. 7.7 - Prob. 10PPSCh. 7.7 - Prob. 11PPSCh. 7.7 - Prob. 12PPSCh. 7.7 - Prob. 13PPSCh. 7.7 - Prob. 14PPSCh. 7.7 - Prob. 15PPSCh. 7.7 - Prob. 16PPSCh. 7.7 - Prob. 17PPSCh. 7.7 - Prob. 18PPSCh. 7.7 - Prob. 19PPSCh. 7.7 - Prob. 20PPSCh. 7.7 - Prob. 21PPSCh. 7.7 - Prob. 22PPSCh. 7.7 - Prob. 23PPSCh. 7.7 - Prob. 24PPSCh. 7.7 - Prob. 25PPSCh. 7.7 - Prob. 26PPSCh. 7.7 - Prob. 27PPSCh. 7.7 - Prob. 28PPSCh. 7.7 - Prob. 29PPSCh. 7.7 - Prob. 30PPSCh. 7.7 - Prob. 31PPSCh. 7.7 - Prob. 32PPSCh. 7.7 - Prob. 33HPCh. 7.7 - Prob. 34HPCh. 7.7 - Prob. 35HPCh. 7.7 - Prob. 36HPCh. 7.7 - Prob. 37HPCh. 7.7 - Prob. 38STPCh. 7.7 - Prob. 39STPCh. 7.7 - Prob. 40STPCh. 7.7 - Prob. 41STPCh. 7.7 - Prob. 42SRCh. 7.7 - Prob. 43SRCh. 7.7 - Prob. 44SRCh. 7.7 - Prob. 45SRCh. 7.7 - Prob. 46SRCh. 7.7 - Prob. 47SRCh. 7.7 - Prob. 48SRCh. 7.7 - Prob. 49SRCh. 7.7 - Prob. 50SCh. 7.7 - Prob. 51SCh. 7.7 - Prob. 52SCh. 7.8 - Prob. 1CYPCh. 7.8 - Prob. 2CYPCh. 7.8 - Prob. 3CYPCh. 7.8 - Prob. 1CYUCh. 7.8 - Prob. 2CYUCh. 7.8 - Prob. 3CYUCh. 7.8 - Prob. 4PPSCh. 7.8 - Prob. 5PPSCh. 7.8 - Prob. 6PPSCh. 7.8 - Prob. 7PPSCh. 7.8 - Prob. 8PPSCh. 7.8 - Prob. 9PPSCh. 7.8 - Prob. 10PPSCh. 7.8 - Prob. 11PPSCh. 7.8 - Prob. 12PPSCh. 7.8 - Prob. 13PPSCh. 7.8 - Prob. 14PPSCh. 7.8 - Prob. 15HPCh. 7.8 - Prob. 16HPCh. 7.8 - Prob. 17HPCh. 7.8 - Prob. 18HPCh. 7.8 - Prob. 19HPCh. 7.8 - Prob. 20STPCh. 7.8 - Prob. 21STPCh. 7.8 - Prob. 22STPCh. 7.8 - Prob. 23STPCh. 7.8 - Prob. 24SRCh. 7.8 - Prob. 25SRCh. 7.8 - Prob. 26SRCh. 7.8 - Prob. 27SCh. 7.8 - Prob. 28SCh. 7.8 - Prob. 29SCh. 7 - Prob. 1QCCh. 7 - Prob. 2QCCh. 7 - Prob. 3QCCh. 7 - Prob. 4QCCh. 7 - Prob. 5QCCh. 7 - Prob. 6QCCh. 7 - Prob. 7QCCh. 7 - Prob. 8QCCh. 7 - Prob. 9QCCh. 7 - Prob. 10QCCh. 7 - Prob. 11QCCh. 7 - Prob. 12QCCh. 7 - Prob. 13QCCh. 7 - Prob. 14QCCh. 7 - Prob. 15QCCh. 7 - Prob. 1MCQCh. 7 - Prob. 2MCQCh. 7 - Prob. 3MCQCh. 7 - Prob. 4MCQCh. 7 - Prob. 5MCQCh. 7 - Prob. 6MCQCh. 7 - Prob. 7MCQCh. 7 - Prob. 8MCQCh. 7 - Prob. 9MCQCh. 7 - Prob. 10MCQCh. 7 - Prob. 11MCQCh. 7 - Prob. 12MCQCh. 7 - Prob. 13MCQCh. 7 - Prob. 14MCQCh. 7 - Prob. 15MCQCh. 7 - Prob. 16MCQCh. 7 - Prob. 17MCQCh. 7 - Prob. 18MCQCh. 7 - Prob. 19MCQCh. 7 - Prob. 20MCQCh. 7 - Prob. 21MCQCh. 7 - Prob. 22MCQCh. 7 - Prob. 23MCQCh. 7 - Prob. 24MCQCh. 7 - Prob. 25MCQCh. 7 - Prob. 26MCQCh. 7 - Prob. 27MCQCh. 7 - Prob. 28MCQCh. 7 - Prob. 29MCQCh. 7 - Prob. 30MCQCh. 7 - Prob. 31MCQCh. 7 - Prob. 32MCQCh. 7 - Prob. 33MCQCh. 7 - Prob. 1SGRCh. 7 - Prob. 2SGRCh. 7 - Prob. 3SGRCh. 7 - Prob. 4SGRCh. 7 - Prob. 5SGRCh. 7 - Prob. 6SGRCh. 7 - Prob. 7SGRCh. 7 - Prob. 8SGRCh. 7 - Prob. 9SGRCh. 7 - Prob. 10SGRCh. 7 - Prob. 11SGRCh. 7 - Prob. 12SGRCh. 7 - Prob. 13SGRCh. 7 - Prob. 14SGRCh. 7 - Prob. 15SGRCh. 7 - Prob. 16SGRCh. 7 - Prob. 17SGRCh. 7 - Prob. 18SGRCh. 7 - Prob. 19SGRCh. 7 - Prob. 20SGRCh. 7 - Prob. 21SGRCh. 7 - Prob. 22SGRCh. 7 - Prob. 23SGRCh. 7 - Prob. 24SGRCh. 7 - Prob. 25SGRCh. 7 - Prob. 26SGRCh. 7 - Prob. 27SGRCh. 7 - Prob. 28SGRCh. 7 - Prob. 29SGRCh. 7 - Prob. 30SGRCh. 7 - Prob. 31SGRCh. 7 - Prob. 32SGRCh. 7 - Prob. 33SGRCh. 7 - Prob. 34SGRCh. 7 - Prob. 35SGRCh. 7 - Prob. 36SGRCh. 7 - Prob. 37SGRCh. 7 - Prob. 38SGRCh. 7 - Prob. 39SGRCh. 7 - Prob. 40SGRCh. 7 - Prob. 41SGRCh. 7 - Prob. 42SGRCh. 7 - Prob. 43SGRCh. 7 - Prob. 44SGRCh. 7 - Prob. 45SGRCh. 7 - Prob. 46SGRCh. 7 - Prob. 47SGRCh. 7 - Prob. 48SGRCh. 7 - Prob. 49SGRCh. 7 - Prob. 50SGRCh. 7 - Prob. 51SGRCh. 7 - Prob. 52SGRCh. 7 - Prob. 53SGRCh. 7 - Prob. 54SGRCh. 7 - Prob. 55SGRCh. 7 - Prob. 56SGRCh. 7 - Prob. 57SGRCh. 7 - Prob. 58SGRCh. 7 - Prob. 59SGRCh. 7 - Prob. 60SGRCh. 7 - Prob. 61SGRCh. 7 - Prob. 62SGRCh. 7 - Prob. 63SGRCh. 7 - Prob. 64SGRCh. 7 - Prob. 65SGRCh. 7 - Prob. 66SGRCh. 7 - Prob. 67SGRCh. 7 - Prob. 1PTCh. 7 - Prob. 2PTCh. 7 - Prob. 3PTCh. 7 - Prob. 4PTCh. 7 - Prob. 5PTCh. 7 - Prob. 6PTCh. 7 - Prob. 7PTCh. 7 - Prob. 8PTCh. 7 - Prob. 9PTCh. 7 - Prob. 10PTCh. 7 - Prob. 11PTCh. 7 - Prob. 12PTCh. 7 - Prob. 13PTCh. 7 - Prob. 14PTCh. 7 - Prob. 15PTCh. 7 - Prob. 16PTCh. 7 - Prob. 17PTCh. 7 - Prob. 18PTCh. 7 - Prob. 19PTCh. 7 - Prob. 20PTCh. 7 - Prob. 21PTCh. 7 - Prob. 22PTCh. 7 - Prob. 23PTCh. 7 - Prob. 24PTCh. 7 - Prob. 25PTCh. 7 - Prob. 26PTCh. 7 - Prob. 27PTCh. 7 - Prob. 28PTCh. 7 - Prob. 29PTCh. 7 - Prob. 30PTCh. 7 - Prob. 31PTCh. 7 - Prob. 32PTCh. 7 - Prob. 33PTCh. 7 - Prob. 1ECh. 7 - Prob. 2ECh. 7 - Prob. 3ECh. 7 - Prob. 4ECh. 7 - Prob. 1STPCh. 7 - Prob. 2STPCh. 7 - Prob. 3STPCh. 7 - Prob. 4STPCh. 7 - Prob. 5STPCh. 7 - Prob. 6STPCh. 7 - Prob. 7STPCh. 7 - Prob. 8STPCh. 7 - Prob. 9STPCh. 7 - Prob. 10STPCh. 7 - Prob. 11STPCh. 7 - Prob. 12STPCh. 7 - Prob. 13STPCh. 7 - Prob. 14STP

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