18. Tira's dog's rectangular pen is 10 feet wide by 25 feet long. Tira wants to increase the area by 200 square feet by increasing the width and length by the same amount. What will be the new dimensions (width by length), in feet?

Answer and Explanation

Your Answer is

Correct Answer is F

Explanation

The increased area is 450. In the answer, F corresponds to 450 and adds 5 to the length and width. Choose F.