Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-4 Properties of Real Numbers - Practice and Problem-Solving Exercises: 24

Answer

$156r$

Work Step by Step

We start with the given expression: $(12\times r)\times13$ The commutative property of multiplication states that changing the order of the factors does not affect the product. We use this property to rearrange the factors: $13\times(12\times r)$ The associative property of multiplication states that changing the grouping of the factors does not affect the product. We use this property to rearrange the grouping: $(13\times12)\times r$ We use the order of operations to simplify: We simplify inside the parentheses: $156\times r$ We multiply: $156r$
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