A rectangular dog pen has an area of 108 square feet. The width of the pen is 9 feet. What is the length?

Length of pen is 12 feet

Step-by-step explanation:

Step 1: Given area of the rectangular pen = 108 sq. ft. and width = 9 ft Step 2: Substitute in the formula for area of a rectangle = length x breadth

⇒ 108 = length x 9

⇒ length = 108/9 = 12