Selected values of the twice-differentiable function h and its first and second derivatives are given in the table above. What i
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To solve this, set up a proportion where X is the amount that 120 lawn mowers would cost. It would look like 
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Then cross-multiply to get 40x = 120(4776) or 40x = 573120. Now divide each side by 40 to isolate the variable.
X = 14328.
120 lawn mowers would cost $14,328.
Then cross-multiply to get 40x = 120(4776) or 40x = 573120. Now divide each side by 40 to isolate the variable.
X = 14328.
120 lawn mowers would cost $14,328.