Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 5 - Number Theory and the Real Number System - 5.5 Real Numbers and Their Properties; Clock Addition - Exercise Set 5.5 - Page 310: 84


See below.

Work Step by Step

The associative property of multiplication says that $(ab)c=a(bc)$. E.g. $(3\cdot2)\cdot4=6\cdot4=24=3\cdot8=3\cdot(2\cdot4)$
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