#### Answer

$\frac{81z}{40}$

#### Work Step by Step

$\frac{9z}{20}$$\div$$\frac{2}{9}$=
=$\frac{9z}{20}$$\times$$\frac{9}{2}$=$\frac{9z\times9}{20\times2}$=
=$\frac{81z}{40}$

Published by
Pearson

ISBN 10:
0321955048

ISBN 13:
978-0-32195-504-3

$\frac{81z}{40}$

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