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Sue opens a retirement account with a deposit of 1520 dollars. Each year, she makes another deposit that is 4.9 percent larger than the one from the previous year. If the account pays an effective rate of interest of 6.9 percent, how much w she have immediately after the 13th deposit? Answer = dollars. On April 15, 1976, Walter opens an account with a deposit of 31000 dollars. The account pays a nominal rate of interest of 8.7 percent convertible quarterly. Starting on April 15, 1977. he makes yearly deposits of 4350 dollars until April 15. 1993, when he makes the final deposit of 4350 dollars. How much is in the account on April 15. 1996; Answer dollars. A company establishes a sinking fund to pay off a debt of $170000 due in 12 years. Find the amount of the annual deposits if interest is 10% per annum. Answers Find the monthly payment needed to pay off a loan of $2100 amortized at 12% compounded monthly for 4 years. Monthly payments