#### Answer

$\frac{3}{16}$

#### Work Step by Step

$\frac{9}{4}$$\times$$\frac{9}{4}$$\times$$\frac{21}{7}$$\div$81
$\frac{9}{4}$$\times$$\frac{9}{4}$$\times$3$\times$$\frac{1}{81}$
$\frac{9\times9\times3\times1}{4\times4\times81}$
$\frac{3}{16}$

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Published by
Brooks Cole

ISBN 10:
1285199197

ISBN 13:
978-1-28519-919-1

$\frac{3}{16}$

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