Manuel buys 7 point 9 pounds of strawberries. Each pound costs 3 point 8 9 dollars Which expression gives the best estimate of the cost of the strawberries?
Answer
A
7 times open paren 3 dollars close paren
B
7 times open paren 4 dollars close paren
C
8 times open paren 4 dollars close paren
D
8 times open paren 3 dollars close paren
Explanation
Round 7.9 pounds to 8 pounds and $3.89 per pound to $4 per pound. The estimated cost is 8 × $4, or about $32, so the best estimate is 8 times 4 dollars.
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