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Solve the Problem $x$ Handcrafted Wagons Is $C(x)=90+6 x-x^{2}+7 x^{3}$ Find the Marginal Cost When

Question 173

Multiple Choice

Solve the problem.
-The total cost to produce $x$ handcrafted wagons is $C(x) =90+6 x-x^{2}+7 x^{3}$ . Find the marginal cost when $\mathrm{x}=6$ .

A) 840
B) 1512
C) 750
D) 1602

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