. Mario has his eye on a car that costs $20,000. He wants to buy a car in 2 years. He plans to open a bank account and to deposit SX today and SX in 1 year. The interest rate is 8% per year. a) How much does Mario need to deposit so that he has $20,000 in 2 years? b) Suppose that instead of making the two equal deposits today and in one year, Mario wants to make a single deposit today. How much does Mario need to deposit today so that he has $20,000 in 2 years