The graph shows the number of miles Peter's car traveled and the gallons of gas used.
MILEAGE OF PETER'S CAR
160
140
120
100
Miles Traveled
80
60
40
20
8
9 10
1 2 3 4 5 6 7
Gallons of Gas
Which equation can be used to find the distance in miles, d, that the car can travel on g gallons of gas?