conversations.from: human
conversations.value: Patty's Plumbing charges $40 to visit a house to make a repair, plus $35 per hour, or part thereof, for labor, plus parts. One job took 2.25 hours and used $60 in parts. How much did Patty charge?
  Find the solution.
conversations.from: assistant
conversations.value: She charged for 3 hours.
  The total cost from the hourly rate was 3*35=$105.
  She charged 40+105+60=205.