Your tractor broke down and was in the shop for 4 days.
Mechanics worked on it for 21.4 hours at $48 per hour. They
replaced $1875.42 worth of parts. You lost $18 per hour by not
having the use of the tractor. You work a 15 hour day. How
much did the labor cost? How much did you lose by not having
the use of your tractor?