#### Answer

$-21$

#### Work Step by Step

Multiplying a positive and a negative number will yield a negative number.
$-3\times7 = -21$

Published by
Prentice Hall

ISBN 10:
0133186024

ISBN 13:
978-0-13318-602-4

$-21$

Multiplying a positive and a negative number will yield a negative number.
$-3\times7 = -21$

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.