*7. Hack’s Berries faces a short-run total cost of production given by TC = Q 3 – 12 Q 2 + 100Q + 1,000.

a. What is the level of Hack’s fixed cost?

b. What is Hack’s short-run average variable cost of producing berries? (Express AVC as a function of Q.)

c. If the price of berries is $60, how many berries should Hack produce? How do you know?
[Hint: You may want to carefully graph the AVC function you derived in part (b).]

d. If the price of berries is $73, should Hack be producing berries? Explain.