Answer
$3$
Work Step by Step
To find the absolute value of a number, we remove the negative sign, if there is one. However, there is no negative sign, so we leave the number as is.
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 42: 72
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