Answer the following questions involving applications of integration. (a) Petal started a business producing sweetheart teddy bears. She produces x teddy bears 3 daily, each of which is sold for $28. Her marginal cost of production has been estimated to be: C ′ (x) = 3x 2 − 12x + 13. Derive an expression C(x) for the total cost of Petal’s business, given that her total cost of producing 10 teddy bears is $750

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