#### Answer

15 ft/sec

#### Work Step by Step

A unit rate has 1 in the denominator.
$\frac{180ft}{12sec}=\frac{180ft\div12}{12sec\div12}=\frac{15ft}{1sec}$

Published by
Pearson

ISBN 10:
0321955048

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

15 ft/sec

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