Casey has a rug in the center of her bedroom floor

72 square feet

If you split the shape up to just get the rectangles around the rug, each one has dimensions of 9 by 2. 9 * 2 = 18 and since there are four of those rectangles, you would do 18 * 4 which equals 72.

The answer is 225 miles per 4.5 hours. hope this ; )