Dru plans to invest 7,000 dollars in 4 years and 7,400 dollars in 3 year(s). He expects to earn 7.93 percent per year. How much money does Dru expect to have in 9 years? Number Steph plans to invest 8,800 dollars in 4 years and X in 3 year(s). She expects to earn 5.86 percent per year. What is X if Steph expects to have 27,300 dollars in 9 years? Number Piotr plans to make regular savings contributions of 6,200 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 13,000 dollars in 3 years. Piotr expects to earn 14.65 percent per year. How much money does Piotr expect to have in 7 years? Number