You just bought a brand new Tahoe from the local Chevrolet dealership at a price of $$75,000.$ A$)$ What are your monthly payments going to be at $7\mathrm{.}5\%$ over $84$ months. B$)$ How much interest will you pay over the life of the loan if all the payments are made on time? How much interest would you save if you made payments over a $60$ month financing period rather than $84?$