A large chain retail store has "scratcher" cards that customers can scratch and win a disco at the register if the customer uses the store's credit card. The following is a table with discount that a customer can scratch off and the corresponding probability of that discour being awarded. Note: the discount percentage IS NOT related to the probability. Do not the discount percentage to calculate any of the probabilities below. Discount Probability 10% off 0.50 15% off 0.25 20% off 0.15 30% off 0.10 1. What is the probability a customer gets at least a 20% discount?
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
#5 and #6


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