Working alone, Amy can clean an attic in 17 hours. One day her friend Sumalee helped her and it only took 7.03 hours. How long would it take Sumalee to do it alone?

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000