1.) Steph plans to invest 8,500 dollars in 2 years and X in 1 year(s). She expects to earn 6.1 percent per year. What is X if Steph expects to have 26,000 dollars in 10 years?

2.) Dru plans to invest 5,400 dollars in 2 years and 8,900 dollars in 1 year(s). He expects to earn 11.78 percent per year. How much money does Dru expect to have in 9 years?

3.) Piotr plans to make regular savings contributions of 6,300 dollars per year for 7 years. His first regular savings contribution is expected in 1 year. In addition, he plans to make a special savings contribution of 14,100 dollars in 2 years. Piotr expects to earn 12.65 percent per year. How much money does Piotr expect to have in 7 years?