#### Answer

$47\ ft^3$ was used

#### Work Step by Step

Subtract the amount that remains from the original amount to find the amount used.
$\ \ \ 1\overset2/\!\!\!2\overset{15}5$
$\underline{-\ \ 78}$
$\ \ \ \ \ 47$

Published by
Brooks Cole

ISBN 10:
1285199197

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

$47\ ft^3$ was used

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