## Algebra 2 (1st Edition)

Published by McDougal Littell

# Chapter 9 Quadratic Relations and Conic Sections - Cumulative Review - Page 659: 47

See below.

#### Work Step by Step

Let $x$ be the original price. Then the function for the sale is: $f(x)=x-50$ . The function for the discount when opening an account is $g(x)=0.85x$. Then the composition is: $g(f(x))=g(x-50)=0.85(x-50)=0.85x-42.5$ Plugging in $x=480$ we get: $0.85(480)-42.5=365.5$

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