Algebra 1: Common Core (15th Edition)

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

Chapter 7 - Exponents and Exponential Functions - 7-8 Geometric Sequences - Practice and Problem-Solving Exercises - Page 472: 65


The price increased by 75%.

Work Step by Step

Percent change $=\frac{70-40}{40}=\frac{30}{40}=\frac{3}{4}=0.75=75\%$ The price increased by 75%.
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