Answer
$a=79.2$, $r=0.002$
Work Step by Step
The value of $a$ can be seen without any rearrangement, since the coefficient is $79.2$ so $a=79.2$. $r$ can be found by using the fact that $$1+r=1.002 \implies r=1.002-1=0.002$$
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
Published by
Wiley
ISBN 10:
1118583191
ISBN 13:
978-1-11858-319-7
Chapter 4 - Exponential Functions - 4.1 Introduction to the Family of Exponential Functions - Exercises and Problems for Section 4.1 - Exercises and Problems - Page 145: 12
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