Answer
The estimate of operating expenses in 2007 is $\$ 2.8$ billion
Work Step by Step
In 2007,
t=2007-2000=7.
$E=0.8t-2.8$
So, in 2007,
$E=0.8(7)-2.8=2.8$
The estimate of operating expenses in 2007 is $\$ 2.8$ billion
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 1 - Section 1.3 - Linear Functions and Models - Exercises - Page 92: 92c
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