Gloria's washing machine is broken. Since her machine is pretty old she doesn't want to spend more than $100 dollars for repairs. A service call will cost $35 dollars and the labor will be an additional $20 dollars per hour. there are no other charges. what is the maximum number of hours that the repair person can work without the total cost exceeding $100??
(a) 2.5
(b) 2.75
(c) 3.0
(d) 3.25
(e) 5.0