A rectangular pool surrounded by a walkway is enclosed in a backyard. The enclosed section covers an area of 300 square feet, and the width is 5 feet shorter than the length. The walkway has width x feet. 1. The width in feet of the enclosed section, including the pool and walkway
2. The length in feet of the enclosed section, including the pool and walkway
3. The width of the pool in feet
4. The length of the pool in feet