32. [-/1.51 Points] DETAILS MY NOTES Cost, revenue, and profit are in dollars and x is the number of units. A firm knows that its marginal cost for a product is MC = 2x + 20, that its marginal revenue is MR = 50 - 4x, and that the cost of production of 60 units is $ (a) Find the optimal level of production. units (b) Find the profit function. P(x) = (c) Find the profit or loss at the optimal level. There is a ---Select-- of $ Show My Work (Optional)? Submit Answer 33. [-/1.68 Points] DETAILS MY NOTES Cost, revenue, and profit are in dollars and x is the number of units. The average cost of a product changes at the rate -20 C'(x) = x 1 + 10 and the average cost of 10 units is $50.00. (a) Find the average cost function. C = (b) Find the average cost of 80 units. (Round your answer to two decimal places.) $