The total annual expense for the car based on the given operating and ownership costs for a certain number of miles is $30,000.
Explanation:
Total annual expense for the car:
- Operating cost per mile = $0.28
- Ownership cost per mile = $0.72
- Total cost per mile = $1.00
- Total miles driven per year = 30,000
- Total annual expense = Total cost per mile x Total miles driven per year = $1.00 x 30,000 = $30,000