1. For a cellular phone billing plan, $60 per month buys 500 minutes or less. Additional time costs $0.45 per minute.

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Math 4 Assessment
4.1.1
Write a piecewise function for the following problems:
1. For a cellular phone billing plan, $60 per month buys 500 minutes or less. Additional time costs
$0.45 per minute.
flx)=(00+45.(X -500)
b0L 50
= 60+45 -225
45-124.5
(1.45 -1b4,
2. A country taxes the first $30,000 of an individual's income at a rate of 20%, and all income over
$30,000 is taxed at 25%. Amy makes $22,500 and Bethany makes $67,000. How much is each
taxed?
3. David's salary is based off commission. The commission is 5% of the sales up to and including
$20,000 and 8% of the sales over $20,000 for the month. David sold $37,000 for the month.
What was his salary?
4. A book sells for $15. The author is paid royalties of 13% on the first 15,000 copies sold and 18%
on any additional copies. How much does the author make when 115,000 copies are sold?
Transcribed Image Text:Desini Name:; Math 4 Assessment 4.1.1 Write a piecewise function for the following problems: 1. For a cellular phone billing plan, $60 per month buys 500 minutes or less. Additional time costs $0.45 per minute. flx)=(00+45.(X -500) b0L 50 = 60+45 -225 45-124.5 (1.45 -1b4, 2. A country taxes the first $30,000 of an individual's income at a rate of 20%, and all income over $30,000 is taxed at 25%. Amy makes $22,500 and Bethany makes $67,000. How much is each taxed? 3. David's salary is based off commission. The commission is 5% of the sales up to and including $20,000 and 8% of the sales over $20,000 for the month. David sold $37,000 for the month. What was his salary? 4. A book sells for $15. The author is paid royalties of 13% on the first 15,000 copies sold and 18% on any additional copies. How much does the author make when 115,000 copies are sold?
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