Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Practice and Problem-Solving Exercises: 73

Answer

The answer is A: 8+x

Work Step by Step

Finding the perimeter requires us to add up the lengths of all of the sides. Thus, we add 4+4+x to get the answer: 8+x.
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