Answer
15 ft/sec
Work Step by Step
A unit rate has 1 in the denominator.
$\frac{180ft}{12sec}=\frac{180ft\div12}{12sec\div12}=\frac{15ft}{1sec}$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.