7. Suppose for your 25th birthday you want to save up $1,384 to celebrate. If your 25th birthday is 6 years from now and your bank offers you 9% APR interest, how much would you have to deposit now to reach your goal? (Round the answer two decimal point)

8.Using the Rule of 72, approximately how long will it take to double your money if you invest it at 7% compounded annually? (Round your answer to two decimal point)

9.Suppose you want to create a "college fund" for your newborn child and plan to deposit $4,490 in a bank account at the end of each year for the next 10 years. If the account paid 12% interest per year, how much will be in the account at the end of the 10th year? (Round the answer two decimal point)