Answer
$$6 \ lb .$$
Work Step by Step
Since $16 oz=1 lb$, we have
$$ 2.5\ lb+12 \times \frac{1}{16}\ lb+1.5 \times \frac{1}{16}\ lb +0.7\ lb +14 \times \frac{1}{16} \ lb + 18 \times \frac{1}{16} \ lb =6.044 \ lb \approx 6~lb.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 1 - Section 1.10 - Addition and Subtraction of Decimal Fractions - Exercises - Page 64: 77
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