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An economist estimated that the cost function of a single-product firm is TC = 2,250 +5Q + 10Q2 and the marginal cost is MC = 5 + 200 Based on this information, determine: 1. The average fixed cost (AFC) of producing 10 units of output. I 2. The average variable cost (AVC) of producing 10 units of output. 3. The average total cost (ATC) of producing 10 units of output. 4. The marginal cost (MC) of producing the 10" unit? 5. The level of output at which the average total cost is minimized