# Chapter 1 - Foundations for Algebra - Cumulative Test Prep - Multiple Choice - Page 75: 5

D \$18.80 #### Work Step by Step Convert the word problem into an algebraic expression for the cost of shipping. Let x be the weight of the package.$\underbrace{\$0.85\ per\ pound}\ \underbrace{plus}\ \underbrace{a\ flat\ fee\ of\ \$12}\ \ \ \ \ \ \ \ \ \ 0.85x\ \ \ \ \ \ \ \ \ \ \ \ \ +\ \ \ \ \ \ \ \ \ \ \ \ 12.00\ \ \ \ \ \ \ \ \ \ \ \ =cost$Substitute 8 pounds for x to find the cost of shipping.$0.85(8)+12.00=6.80+12.00=18.80\$

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