Suppose a friend tells you she paid a total of $16,368 for a car and you'd like to know the cars list price (the price before taxes) so that you can compare prices at various dealers find the list price of the car if your friend boutght the car in a) Arizona, where the sales tax is 6.6%
b) new York where the sales tax is 8.25%
c) Washington where the sales tax is 10.25%
d) a state where the sales tax is r%
e) Solve for r (rewrite your equation in the form r=) for part d