#### Answer

$b=20$

#### Work Step by Step

We are given the equation $-\frac{9}{10}b=-18$. Multiply both sides by $-\frac{10}{9}$.
$(-\frac{9}{10}b\times-\frac{10}{9})=b=-18\times-\frac{10}{9}=\frac{18\times10}{9}=\frac{180}{9}=20$
Therefore, $b=20$.

Published by
Pearson

ISBN 10:
0321825535

ISBN 13:
978-0-32182-553-7

$b=20$

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