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rebecca and chris borrowed 2000 at an interest rate of 7% for a period of 3 years. What was the interest?Calculate the accumulated value of a 7-year continuous annuity of 1000 per year.The annual effective interest rate is 10%.Sam deposited 3500 into the bank. The account earns 2% interest compounded annually. What is his balance at the end of 8 years?How much money will there be in an account at the end of 5 years if 8000 dollars is deposited at 4% interest compounded semi-annuallyA principal of 3300 is invested at 7.25% interest, compounded annually. How much will the investment be worth after 7 years?