SOLUTION
In 2010, the cost for the car was $21,000 and in 2019 it was $24,000
The increase in price is
Percentage increase in price is calculated as
This becomes
Therefore Percent increase is the increase in price is 14.29%
(b) The average increase is calculated as
2010 to 2019 is 9 years. So the average increase is
Therefore, the average increase is $333.33 per year