Springfield mogul Montgomery​ Burns, age 70 ​, wants to retire at age 100 so he can steal candy from babies full time. O

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Springfield mogul Montgomery​ Burns, age 70 ​, wants to retire
at age 100 so he can steal candy from babies full time. Once Mr.
Burns​ retires, he wants to withdraw ​$1.2 billion at the beginning
of each year for 10 years from a special offshore account that will
pay 21 percent annually. In order to fund his​ retirement, Mr.
Burns will make 30 equal​ end-of-the-year deposits in this same
special account that will pay 21 percent annually. How much money
will Mr. Burns need at age​ 100, and how large of an annual deposit
must he make to fund this retirement​ account?