Given data:
The cost of the car is C=$20,000.
(a)
The final prize after sales tax in Los angeles is,
[tex]\begin{gathered} F=(1+\frac{9.5}{100})C \\ =(1.095)(20,000) \\ =21,900 \end{gathered}[/tex]The final prize after sales tax in California is,
[tex]\begin{gathered} F^{\prime}=(1+\frac{7.25}{100})C \\ =(1.0725)(20,000) \\ =21,450 \end{gathered}[/tex](b)