Working together, it takes Sam, Jenna, and Francisco two hours to paint one room. When Sam works alone, he can paint one room in 6 hours. When Jenna works alone, she can paint one room in 4 hours.


1. How would you represent the amount of work that the following can finish the job in one hour:
a. Sam alone?
b. Jenna alone?
c. Francisco alone?
d. if they work together?


2. If they all work together, what equation would represent the amount of work they can finish in one hour?


3. Determine how long it would take Francisco to paint one room on his own.​