The area of a rectangle is 13 square inches. the length of the rectangle is 3.25 inches. what is the width of the rectangle? what is the perimeter of the rectangle?

since the area of the rectangle is 13 square inches and the length is 3.25 inches subtract 3.25 from 13

which makes your width 9.75

to find the perimeter you add

9.75 + 3.25 + 9.75 + 3.25= 26.5

The perimeter of the rectangle is 26.5

both equations and proportions are better.