1. Find the future value of the following cash flow streams; the interest rate is 5 percent per year, compounded annually: a. $400 is invested each year, beginning one year from now and continuing through year 5. The proceeds are withdrawn at the end of year 5. I b. $400 is invested each year, starting today (right now) and continuing through year five, when the proceeds are withdrawn. c. $400 is invested at the beginning of each year for the next 4 years. The proceeds are withdrawn six years from now