Question: c) A profit-maximising firm has a marginal cost function given by MC = 3x2+ 120x - 25 and a marginal revenue function given by MR

c) A profit-maximising firm has a marginal cost function given by MC = 3x2+ 120x - 25 and a marginal revenue function given by MR = 160x + 50. i) Using the tools of integration, find an expression for the firm's total revenue and total cost function in terms of Q. il) Find the profit-maximising level of output if the firm's fixed cost of production are zero. (30 marks)

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