Question

A construction contractor used the equation 11.72=(2.93)4 to calculate how much four boxes of nails would cost him. How much would 9 boxes of nails cost him?

Answer 1

26.37

Explanation:

Apparently, we're to substitute 9 for 4 and recompute:

26.37 = (2.93)9

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This assumes that the 4 in the expression is the number of boxes, and the (2.93) in the expression is the price per box. The product of those numbers is 11.72, apparently the total cost of 4 boxes of nails.