Add or subtract as indicated. Express the answer in pounds and ounces.21 lb 3 oz - 17 lb 12 oz
A. 38 lb 7 oz
B. 4 lb 7 oz
C. 4 lb 6 oz
D. 3 lb 7 oz
Answer: D
Mathematics
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Fill in the blank with the correct symbol <, >, or =, to make a true statement.
_____ 
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Mathematics