A farmer finds that if she plants I") trees per acre, each tree will yield 65 bushels of fruit. She estimates that for each additional tree planted per acre, the yield of each tree will decrease by 4 bushels. How many trees should she plant per acre to maximize her harvest? |- | I trees Give your answer rounded to the nearest whole number. The function me] = 2.251.'2 + 15252: QUUU gives the profit when :13 units of a certain product are sold. Find a]: the profit when ?5 units are sold I I dollars in] the average profit per unit when ?'5 units are sold I I dollars per unit c] the rate that prot is changing when exactly ?5 units are sold I I dollars per unit cl] the rate that profit changes on average when the number of units sold rises from ?'5 to 150. I I dollars per unit e} The number of units sold when profit stops increasing and starts decreasing. [Round to the nearest whole number if necessary] I I units