Leslie placed this ad in Collector Car Monthly.

1957 Chevrolet Nomad station wagon. Tropical Turquoise, 6 cyl. auto, PS, PW, AM/FM, repainted, rebuilt transmission, restored two-tone interior. Mint! Moving, sacrifice, $52,900. 555-4231

a. If the publication charges $48 for the first three lines and $5 for each extra line, how much will this ad cost Leslie?
b. Ruth buys the car for 8% less than the advertised price. How much does she pay?
c. Ruth must pay her state 6% sales tax on the sale. How much must she pay in sales tax?