please help due in an hour

X Photo 88 Open with Previe E Homework: Secuon 9.0 Homework Question 14, 4.6.33-BE Points: 0 of 1 Save Next question A fence is to be built to enclose a rectangular area of 450 square feet. The fence along three sides is to be made of material that costs $4 per foot. The material for the fourth side costs $12 per foot. Find the dimensions of the rectangle that will allow for the most economical fence to be built. The short side is ft and the long side is it