Question 8: Future Value and Present Value [10 pts) I am currently 27 years old and would like to retire when I am 65 years old. I would like to invest 10% of my salary every month to my retirement fund which has an annual interest rate of 5.2% compounded continuously. Assuming my monthly salary is $5,200, how much will I have saved by retirement? Choose the applicable equation from the following: (a) Future value with changing contribution: 5"R(t)e (T-1)dt (b) Future value with constant contribution: $(e'T 1) (c) Present value with changing contribution: 5"R(t)e=rt dt (d) Present value with constant contribution: P(1-e-")