The slope is 3 and the point is (0,-13)
After the mechanic it cost $1.88 cheaper to run the car
Assuming that the cost of the fine is proportionate per each 20mph increase, then a 40mph speeding ticket should be $4, and if they received a fine of $150 would be a crazy amount of speed, is there something you did not attach?
220/550 = 0.40
0.40 * 100 = 40%
40% of students ride the bus
Hope this helped! similar triangles have proportional lengths, so each side can be compared with one another.
