Answer
$\log_{7} (\frac{3}{4})$
Work Step by Step
$\log_{7} 15-\log_{7} 20=\log_{7} (\frac{15}{20})=\log_{7} (\frac{3}{4})$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 12 - Review - Page 906: 57
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