Please assist me out with the following questions.
Question 1 -Future value:
If you deposit $ 10,000 in a bank account that pays 10 percent interest annually, how much would be in your account after 5 years?
Question 2- Present value:
What is the present value of a security that will pay $ 5,000 in 20 years if securities of equal risk pay 7 percent annually?
Question 3- Finding the required interest rate:
Your parents will retire in 18 years. They currently have $ 250,000, and they think they will need $ 1,000,000 at retirement. What annual interest rate must they earn to reach their goal, assuming they don't save any additional funds?