Answer
$8$
Work Step by Step
A gain in weight is represented by a positive number.
Thus, a gain of 8 pounds can be expressed by the positive number 8.
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 1 - Section 1.3 - The Real Numbers - Exercise Set - Page 41: 3
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