X21) The FFA has $2400 in a fund to raise money for a new tractor. They are selling trees and have determined that the number of trees they can buy to sell depends on the price of the tree p, according to

the function n(p) = 2400. Also, after allowing for profit, the number of trees that customers will

purchase depends on the price which the group purchased the trees with function cp) = 300 - 6p. For

what price per tree will the number of trees that can be equal the number of trees that will be sold?