Suppose a firm’s total cost function is given by TC = 6,000 + 2Q + 0.25Q2, where MC = 2 + 0.5Q. ​ a. What is the output level that minimizes total

Suppose a firm’s total cost function is given by TC = 6,000 + 2Q + 0.25Q2, where MC = 2 + 0.5Q.
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a. What is the output level that minimizes total cost?
b. What is the output level that minimizes average total cost?