A commercial cherry grower estimates from past records that if 26 trees are planted per acre. then each tree will yield an average of 38 pounds of cherries per season. If. tor each additional tree planted per acre (up to 20), the average yield pertree is reduced by 1 pound, how many trees should be planted per acre to obtain the maximum yield per acre? What is the maximum yield? In orderto get the highest yield of [I pounds. D trees should be planted per acre