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frozen [14]
3 years ago
15

10

Mathematics
1 answer:
miskamm [114]3 years ago
7 0

Answer:

4 lb

Step-by-step explanation:

Subtracting 4 lb from 18 lb yields 14 lb, the weight of the backpack without math book:  18 lb - 4 lb = 14 lb

The math book weighs 4 lb.

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