Alp Bilgin deposits $33.000 in a saving account that pays 9% interest compounded monthly. Four years later, he deposits $20.000. Three years after the $20.000 deposit, he makes another deposit in the amount of $ 16.500. Six years after the $16.500, half of the accumulated funds are transferred to a fund that pays 12% interest compounded quarterly. How much money will be in account eight years after the transfer?

What is the future worth of the following series of payments? a) $30,000 at the end of each six-month period for five years at 8% compounded semiannually. b) $50,000 at the end of each quarter for 10 years at 6% compounded quarterly. c) $13,000 at the end of each month for six years at 9% compounded monthly.

A $200,000 loan is to be repaid in equal yearly payments over 25 years at an interest rate of 4% compounded annually. If the loan is paid off using the 25-year schedule, how much interest will be paid in total?