#### Answer

$\frac{a+9}{13}$

#### Work Step by Step

$\frac{a}{13}+\frac{9}{13}=\frac{a+9}{13}$

Published by
Pearson

ISBN 10:
0321726391

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

$\frac{a+9}{13}$

$\frac{a}{13}+\frac{9}{13}=\frac{a+9}{13}$

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