34. Cost of Producing Surfboards The total cost C(x) (in dollars) in- curred by Aloha Company in manufacturing x surfboards a day is given by C(x) = - 10x + 300x + 130 (o s x s 15) %3D Find C' (x). What is the rate of change of the total cost when the level of pro- duction is ten surfboards a day?

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