## Basic College Mathematics (9th Edition)

Published by Pearson

# Chapter 6 - Percent - 6.4 Using Proportions to Solve Percent Problems - 6.4 Exercises: 26

#### Answer

600 text messages

#### Work Step by Step

Use percent proportion. $\frac{168}{x}=\frac{28}{100}$ Cross products: $28x=16800$ Divide by 28: $x=600$

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