justify of the solution and answer. i will give upvote

give clear detailed solution please use white paper Problem #7: A rectangular garden is fenced on three sides, and the house forms the fourth side ' of the rectangle. a. Given that the total length of the fence is 90 m, present an illustration of the problem. b. Show that the area, A, is given by the formula A = y(90 - 2y), where y is the distance from the house to the end of the garden. c. Given that the area is a maximum for the length of this garden, find the dimensions of , the enclosed garden and the area which is enclosed