SOLUTION
In 2010, the cost for the car was $21,000 and in 2019 it was $24,000
The increase in price is
[tex]24,000-21,000=3,000\text{ dollars }[/tex]Percentage increase in price is calculated as
[tex]\frac{i\text{ncrease in price }}{\text{original price }}\times100[/tex]This becomes
[tex]\begin{gathered} \frac{3000\text{ }}{21000\text{ }}\times100 \\ =14.29\text{ percent } \end{gathered}[/tex]Therefore Percent increase is the increase in price is 14.29%
(b) The average increase is calculated as
[tex]\frac{i\text{ncrease in price }}{n\text{umber of years }}[/tex]2010 to 2019 is 9 years. So the average increase is
[tex]\frac{3000\text{ }}{9}=333.33\text{ dollars }[/tex]Therefore, the average increase is $333.33 per year