S-48A. (Compounding using a calculator) Springfield mogul Montgomery Bums, age 80, wants to retire at age 100 in order to steal candy from babies fuJI time. Once Mr. Burns retires, he wants to withdraw $1 billion at the beginning of each year for 10 years from a special off-shore account that will pay 20 percent annually. In order to fund his retirement, Mr. Burns will make 20 equal end-of-the-year deposits in this same special account that will pay 20 percent annually. How much money will Mr. Burns need at age 100, and how large of an annual deposit must be made to fund this retirement fund amount?