For exercises 2-5, summarize/interpret your answer. Include units.Find any absolute extrema for f(x)=5x35x on the interval (0,).Given the cost function C(x)=19600500xx2 find:a) The cost at the production level 1550.b) The average cost at the production level 1550.c) The marginal cost at the production level 1550.d) The production level that will minimize the average cost.e) The minimal average cost.A farmer finds that if she plants 40 trees per acre, each tree will yield 72 bushels of fruit. She estimates that for each additional tree planted per acre, the yield of each tree will decrease by 1.5 bushels. How many trees should she plant per acre to maximize her harvest?A furniture store expects to sell 300 desks a year. Each desk costs $400 and there is a fixed ordering charge of $800 per order. If it costs $200 to store a desk for a year, how many desks should be ordered in each shipment to minimize the costs?