Final answer:
The size of the sedan's tank is approximately 42 gallons.
Step-by-step explanation:
To find the size of the sedan's tank in gallons, we need to divide the total amount of gasoline used by the car by the cost to fill up the tank.
The total amount of gasoline used is the difference between the miles recorded on the sedan (15,004 miles) and the initial miles before the trip. Let's assume the initial miles of the sedan were 14,000 miles. So, the total distance traveled is 15,004 - 14,000 = 1,004 miles.
To calculate the size of the tank in gallons, we divide the total distance traveled by the average miles per gallon. Considering the average miles per gallon of sedans is around 24 miles per gallon, we have:
Size of tank = Total distance traveled / Average miles per gallon = 1,004 miles / 24 miles per gallon ≈ 41.83 gallons
Rounding to the nearest whole number, the size of the sedan's tank is 42 gallons.