Final answer:
Rajiv's deduction for the use of the auto after application of all relevant limitations is $9,000.
Step-by-step explanation:
Rajiv's deduction for the use of the auto after application of all relevant limitations can be calculated using the actual cost method. The deduction is based on the business use percentage of the total miles driven. In this case, Rajiv drove 20,000 miles, with 15,000 miles for business use. This means the business use percentage is 75%.
To calculate the deduction, we need to add up the total auto costs: $7,000 for gasoline and repairs, $1,000 for insurance, and $4,000 for depreciation. The total auto cost is $12,000.
Finally, we multiply the total auto cost by the business use percentage to get the deduction amount. $12,000 x 75% = $9,000.