Answer
a) The number decreased by 26,932.
b) The average decrease per year is 6733.
Work Step by Step
a) $33319-6387=26932$
b) $2012-2008=4\ $years
average change per year = $26932\div4=6733$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 2 - Section 2.4 - Multiplying and Dividing Integers - Exercise Set - Page 130: 121
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