15. The odometer of Daniel's car reads 78, 910 miles. His car is 4 years old. What is the average number of miles Daniel has driven per year?
Daniel drove an average of 19, 727.5 miles per year.
Daniel drove an average of 39, 455 per year.
Daniel drove an average of 9,863.8 miles per year.
Daniel drove an average of 6,575.83 miles per year.
