A) Assume that the number of miles driven is proportional to the gas used by the car. If a car can drive 116 miles on 4 gallons of gas, find an equation that represents this relationship.

1. 35.50 increase 60% =

35.50 × (1 + 60%) = 35.50 × (1 + 0.6) = $56.80

2. 14.75 increase 45% =

14.75 × (1 + 45%) = 14.75 × (1 + 0.45) = 21.3875 = $21.39

3. 98.25 increase 7% =

98.25 × (1 + 7%) = 98.25 × (1 + 0.07) = 105.1275 = $105.13

4. 19250.95 increase 4.5% =

19250.95 × (1 + 4.5%) = 19250.95 × (1 + 0.045) = 20117.24275 = $20117.24