## Intermediate Algebra (6th Edition)

Published by Pearson

# Chapter 5 - Section 5.3 - Polynomials and Polynomial Functions - Exercise Set: 125a

#### Answer

$474.9$ billion dollars

#### Work Step by Step

We are given that $f(x)=.19x^{2}+5.67x+43.7$ can be used to approximate the amount of restaurant food-and-drink sales, where x is the number of years since 1970 and f(x) is the sales (in billions of dollars). To calculate the sales in 2005, we will use $x=35$, because 2005 is 35 years after 1970. $f(x)=.19(35)^{2}+5.67(35)+43.7=474.9$ billion dollars

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