5) The length is 3 and the width is 5. 5 times 3 equals 3.
The area is 15 feet
6) The length is 8 and the width is 8. 8 times 4 (because you have to add all the sides of the rectangle together to find perimeter) is 32
The perimeter is 32 feet
7) The possible dimensions are 6ft wide and 7ft long because the area equals 42