3. [-/9 Points] DETAILS MY NOTES A prize winning animal is going to be shown at the State Fair. A pen must be constructed to hold the animal. The rectangular pen will have three wooden sides, which cost 25 dollars per foot to construct. The front of the pen will be made of a special reinforced glass, which costs 40 dollars per foot to construct. The animal requires an area of 45 square feet in order to be comfortable. wood glass Figure 1. Schematic drawing of animal enclosure a. If the pen is to be built as cheaply as possible, what are the dimensions of the pen that should be built? Length of glass front of pen : feet Depth of pen : feet b. How much will the pen cost to build? Cost of pen : dollars Give all your answers correct to two decimal places