#### Answer

(b) 7

#### Work Step by Step

Using the logarithmic property $\log_{b} b^{x}$,
$\log_{10} 10^{7}=7$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

(b) 7

Using the logarithmic property $\log_{b} b^{x}$,
$\log_{10} 10^{7}=7$

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