He would spend $65.80 on 20 gallons of gas.
Answer:

Step-by-step explanation:
for this case we have the following model for the cost of the car:

Where
is the initial amount on this case 17000, t the amount of years after the initial year and r the depreciation rate on this case:

And for t =14 we can replace into the equation and we got:

The unit rate is 2.33/1 movie. Hope it helps
23/103 = 0.22
0.22*100 = 22%
The percentage increase is 22%
Hope that helps!