Posted by **karen** on Thursday, April 5, 2012 at 3:59pm.

An investment earning simple interest rate of 1.10% per annum for a term of 5 years earned 82.50 in interest. What was the principal?

- math 11 -
**karen**, Thursday, April 5, 2012 at 4:02pm
oh sry i forgot to ask these questions.. to help you answer this one its a long one

1.calculate the final value after 10 years if you invest 5000.0 at 2.5% compounded annualy

2.Calculate the amount of interest earned in 10 years on 1000.00 invested at 3.00% per annum, compounded monthly

3.calculate the interest due on the following credit card balanced

a)an unpaid balance of 1629.53 at a rate of 19.50% for 21 days

b) an unpaid balance of 2639.99 at a rate of 22.95% for 30 days.

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