## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson

# Chapter 12 - Exponential Functions and Logarithmic Functions - 12.4 Properties of Logarithmic Functions - 12.4 Exercise Set - Page 809: 1

#### Answer

$(e)$

#### Work Step by Step

$\log_{7}20=\log_{7}(5\cdot 4)$ ... apply $\log_{a}(MN)=\log_{a}M+\log_{a}N$ $=\log_{7}(5)+\log_{7}(4)$ ... case $(e)$

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