please assist. the lead in to the question reads: "You are given that a firms average total cost (ATC) are a function of the quantity of output (Q) produced by the firm. The average total cost function is five by:"

CON 4. You are given that a firm's average total costs ( ATC ) are a function of the quantit (0) produced by the firm. The average total cost function is given by: ATC =10-.10+.002Q2 A. Calculate dATC/ de. B. Solve for the level of output that minimizes average total cost. C. Use the second derivative to verify that this is a minimum