Alvin is buying hats and shirts. Hats cost $8 each and shirts cost $12 each. He buys a total of 22 items. Let z be the number of shirts that he buys. (a) Give and algebraic expression for the number of hats Alvin buys in terms of the number of shirts. (b) Give and algebraic expression for the total cost of the shirts that Alvin buys.

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
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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Alvin is buying hats and shirts. Hats cost $8 each and shirts cost $12 each. He buys a total of 22 items. Let z be the number of shirts that he buys.

(a) Give and algebraic expression for the number of hats Alvin buys in terms of the number of shirts.

(b) Give and algebraic expression for the total cost of the shirts that Alvin buys.

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