$20,000 is invested for 9 months at an annual simple interest rate of 3%. (a) How much interest will be earned?   (b) What is the future value of the investment after 9 months?

Find the future value, A of a simple interest loan of $28,500 at 9.5% interest for 7 months. The future value formula is A P(1 + rt) where P is the principal, r is the interest rate as a decimal, and t is time in years. = Give your answer to the nearest cent

Mike buys a ring for his fiancee by paying $30 a month for one year. If the interest rate is 10% per year, compounded monthly, what is the price of the ring?

You deposit $1000 into an investment account. 8 years later, the amount in the account has doubled. What is the percent growth (as a decimal) of the account?

Fritz Benjamin buys a car costing $6600. He agrees to make payments at the end of each monthly period for 4 years. He pays 6.0% interest, compounded monthly. (a) What is the amount of each payment? (b) Find the total amount of interest Fritz will pay. (a) Fritz's monthly payment is $. (Round to the nearest cent as needed.) (b) Fritz will pay a total of $ in interest. (Round to the nearest cent as needed.)

You invest $15,000 at 5.5% interest compounded monthly for 12 years. How much will you have accumulated in this investment at the end of the 12 years?

Frank invests $ 4500 dollars into an account earning interest compounded quarterly. After 7 years there is $ 6100 in the account. What was the interest rate?