Answer: 155167 cars could have been fueled.
Step-by-step explanation:
The total volume of oil that spilled into the Golf of Mexico is 4.9 million barrels of oil.
Each barrel of oil can be processed into about 19 gallons of gasoline. This means that the number of gallons from 4.9 million barrels of oil would be
4900000 × 19 = 93100000 gallons
Assuming an average car has a gas mileage of 20 miles per gallon. This means that if the car drives about 12,000 miles in a year, the total number of gallons of oil used by a car would be
12000/20 = 600 gallons
Therefore, if each car uses 600 gallons in a year, the number of cars that would be fueled with 93100000 gallons is
93100000 gallons/600
= 155166.7
Approximately 155167 cars