Please try to explain three questions with clear reason no copying please

Eventually, even for very successful firms, growth of total revenues and profits levels off and declines. Why?

Amazon offers customers a pay per delivery option as well as an Amazon prime subscription option. The subscription option costs a fixed amount per month, with a minimum ofa 12-month contract, and allows an unlimited number of deliveries per month. Why does Amazon offer the subscription option?

It is generally assumed firms that continually maximize profits in the short run, also will maximize profits over the long run. Do you agree? Explain.