1) in six years from today, Dru plans to invest $9900 in an account that is expected to earn 12.76 percent per year. In five years, Dru plans to invest $6500 and the same account. In 11 years from today, how much money will Dru have in his account?!

2) in 2years from today, steph plans to invest $6500 in an account that is expected to Aaron 3.15 percent per year. She also expects to make an investment of X and the same account in one year from today. What is X if steph expects to have $23,200 in her account in 11 years from today and expected to 10 for the account is a 3.15% per year.

3) Piotr plans to make regular savings contribute shins of $7500 pair year to his retirement account for 10 years. His first should I get a contributing to his retirement account is expected in one year. In addition, he also plans to make at one time, special contribution of 10000 dollars to his retirement account in 4 years from today . Piotr expects to learn 16.49% per year in his retirement account and he plans to retire in 10 years. How much money does he expect to have in his account when he retires, immediately after making his last contribution?!