Susan wants to hire one of two mechanics to repair her car. Each mechanic charges a one-time fee in addition to an hourly rate.
Mechanic A charges a one-time fee plus $35 per hour. A repair made by Mechanic A that takes 5 hours to
complete will cost a total of $225.
This table shows the total cost, including the one-time fee, for repairs made by Mechanic B that take
different numbers of hours to complete.
Mechanic B
1
80
2
120
3
160
4
200
5
240
6
280
How much more money, in dollars, does Mechanic A charge for the one-time fee than Mechanic B