The total cost of producing z bicycles is C(z) = 10,000+ 150z-0.2z² dollars (A) What is the cost of producing a batch of 140 bicycles? (Show all details clearly and simplify your answer.) (B) What is the cost of producing a batch of 141 bicycles? (Show all details clearly and simplify your answer.) (C) If batch size changes from z = 140 bicycles to z = 141 bicycles, what will be the change in cost of producing a batch of bicycles? That is, if z = 140 and Az = 1, what is AC? (exact value) (Show all details clearly and simplify your answer.) (The book calls this quantity the cost of producing the 141st bicycle.)

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