(Compounding using a calculator) Bart Simpson, age 10 , wants to be able to buy a really cool new car when he turns 17. His really cool car costs $18,000 today, and its cost is expected to increase 2 percent annually. Bart wants to make one deposit today (he can sell his mint-condition original Nuclear Boy comic book) into an account paying 8.2 percent annually in order to buy his car in 7 years. How much will Bart's car cost, and how much does Bart have to save today in order to buy this car at age 17 ? a. How much will Bart's car cost after 7 years? (Round to the nearest cent.) b. How much does Bart have to save today in order to buy this car at age 17? (Round to the nearest cent.)