#### Answer

21

#### Work Step by Step

First do the square roots, then multiply, then subtract.
9 * \sqrt 16 - 3 * \sqrt 25 = 9 * 4 - 3 * 5 = 36 - 15 = 21

Published by
Pearson

ISBN 10:
0321825535

ISBN 13:
978-0-32182-553-7

21

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.