A firm has revenue given by

R(q) = 160q - 3q²

and its cost function is

C(q) = 500 + 400 Q

What is the profit-maximizing level of output? What profit does the firm earn at this output level?

The firm maximizes profit by producing q = _______. (Enter your response as a whole number.)

Corresponding profit is pi = $_________. Enter your response as a whole number).