A Rectangular Area Is to Be Enclosed and Divided into Thirds

Multiple Choice

A rectangular area is to be enclosed and divided into thirds. The family has $800 to spend for the fencing material. The outside fence costs $18 per running foot installed, and the dividers cost $22 per running foot installed. What are the dimensions that will maximize the area enclosed? Round your answer to two decimal places. ​​

A) Dimensions are 40.00 ft for the side parallel to the dividers and -8.00 ft for the other side.
B) Dimensions are -8.00 ft for the side parallel to the dividers and 40.00 ft for the other side.
C) Dimensions are 7.30 ft for the side parallel to the dividers and 7.00 ft for the other side.
D) Dimensions are 5.00 ft for the side parallel to the dividers and 11.00 ft for the other side.
E) Dimensions are 11.00 ft for the side parallel to the dividers and 5.00 ft for the other side.