A rectangular enclosure is to be made using an existing wall as one side, 8m of a perpendicular part of another side, and 90m of fencing. a) What is

A rectangular enclosure is to be made using an existing wall as one side, 8m of a perpendicular part of another side, and 90m of fencing.a) What is the maximum are of the enclosure?b) Give an equation for the function.c) Give the coordinates of the vertex, focus, x-intercepts, and equation of the directrix.