#### Answer

405

#### Work Step by Step

$5\times9^2=5\times(9\times9)=5\times81=405$

Published by
Pearson

ISBN 10:
0321955048

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

405

$5\times9^2=5\times(9\times9)=5\times81=405$

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