33. The owner of a dance studio wants to double the area of a rectangular 8-foot-by-10-foot dance floor. The 8-foot width will be increased by 2 feet. By how many feet must the length increase?

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

The original area is 80, and the doubled area is 160. The width changes from 8 to 10, so the length after that is 16. 16-10=6, so choose C.