## Algebra 2 (1st Edition)

Published by McDougal Littell

# Chapter 7 Exponential and Logarithmic Functions - 7.4 Evaluate Logarithms and Graph Logarithmic Functions - 7.4 Exercises - Mixed Review - Page 505: 71

49

#### Work Step by Step

Using the rules of exponents, we find: $$\frac{1}{\left(\frac{7^8}{7^9}\right)^2} \\ \frac{1}{\frac{1}{7^2}} \\ 7^2 \\ 49$$

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