Jacksons rectangular bedroom has an area of 90 ft.². The area of his bedroom is nine times that of his rectangular closet. If the closet is 2 feet wide, what is its links?

The closet area is 1/9 of the bedroom area, so is (1/9) · (90 ft²) = 10 ft².

The width of the closet multiplied by the length is the area.

... length * (2 ft) = 10 ft²

... length = (10 ft²) / (2 ft) = 5 ft

The length of Jackson's closet is 5 ft.