Answer
3
Work Step by Step
$\frac{12+6+12+9}{13}$
$=\frac{39}{13}$
$=3$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 5 - Section 5.7 - Decimal Applications: Mean, Median, and Mode - Exercise Set - Page 393: 18
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