#### Answer

The length of the rectangle is 20 feet.
The width is 17 feet.

#### Work Step by Step

Since the length is stated in terms of the width, we can let w represent the width. The width is 3 less than the length, which equals l - 3.
The formula for the perimeter of the rectangle is width + width + length + length.
The perimeter of the rectangle is 74, so we set up the following equation:
l+ l - 3 + l - 3 + l - 3 = 74
4l - 6 = 74
4l = 80
Divide both sides by 4.
l = 20.
The length of the rectangle is 20 feet.
The width is l - 3, which equals 20 - 3 = 17 feet.