Final answer:
To calculate the average yearly maintenance fee for a car over five years, add up all the maintenance costs and divide by 5. The total maintenance cost is $1755, and when divided by 5, the average yearly fee is $351.
Step-by-step explanation:
The question involves calculating the average yearly maintenance fee for a car over a five-year period based on the given costs of maintenance tasks. To find the average yearly maintenance cost, first add up the total cost of maintenance over the five years, then divide by 5 to get the average annual cost.
For oil changes: 2 per year × $48 each × 5 years = $480
For new brakes: $452
For new tires: $678
For new spark plugs: $145
Total maintenance cost over five years = $480 (oil changes) + $452 (brakes) + $678 (tires) + $145 (spark plugs) = $1755
Therefore, the average yearly maintenance fee is $1755 ÷ 5 = $351.