A perfectly competitive firm will be profitable if price at the profit-maximizing quantity is above: a. ATC.
b. AVC.
c. AFC.
d. MC.

A perfectly competitive firm will be profitable if price at the profit-maximizing quantity is above:

d. MC.

Explanation:

The general rule of profit maximization for a perfectly competitive firm is for the firm (and each firm in the market) to produce the quantity of output where the price (P) = marginal cost (MC).  In this case, the price (P) is a measure of the value that customers place on the good.   The marginal cost (MC) measures what it costs the firm to produce each marginal unit.

answerpounds of plastic to purchase 200+60-20=(240);