Chapter 4 - Proportions, Percents, and Solving Inequalities - 4.3 - More on Percents and Problem Solving - Problem Set 4.3 - Page 162: 43

One pizza should be sold for 12.4 dollars.

Let s represent the selling price. We can use the following guideline to solve this problem: Selling price = Cost + Profit s = 8 + 55% $\times$ 5 s = 8 + .55 $\times$ 5 s = 8 + 4.4 s = 12.4 One pizza should be sold for 12.4 dollars.