Answer
no
Work Step by Step
B$^\prime$ is a subset of A if all the members of B$^\prime$ are also members of A. B$^\prime$ includes 15, which is not a member of A, so B$^\prime$ is not a subset of A.
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 3 - Solving Inequalities - 3-6 Compound Inequalities - Mixed Review - Page 206: 58
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