suppose a perfectly competitive firm with total cost function given as :TC=400+20Q-2Q²+⅔Q³ A, find profit maximizing level of output and the maximum profit if the average revenue equals $180 B, calculate the shutdown level of output and price​

the first question's answer is a.

i believe

clean air is essential for health and survival

clean air provides nitrogen gas for plant respiration

clean air supplies oxygen that enables living organisms to breathe

hope this

i am brianly

sorry if this doesn't

answerhumanism;