Suppose that we're making and selling some widget and the cost (in dollars) when making a widgets is C(x) = 0.0012³ - 0.08x² +30x+2000. What are the average cost and marginal average cost functions, and what is the marginal average cost when we sell 53 widgets? The average cost function is Č(x) = The marginal average cost function is c'(x) = If we're already making 53 widgets, by how much will our average cost per widget change if we increase production by one unit? $ (round to 4 decimal places if rounding is needed)

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