We are asked to find the final average retail price of the vehicle after the given additions and deductions.
The average retail value is $15,857
Add $60 for heated outside mirrors.

Add $250 for rear and side airbags.

Add $175 for cruise control.

Add $100 for remote keyless entry.

Deduct $750 for excessive mileage.

Therefore, the average retail price is $15,692