Round your answer to the nearest one hundredth percentage point. a.Find the value of $1245 per month in perpetuity if the interest rate is 6 percent. Assume the first cash flow is received or paid immediately. b. Suppose an investment costing $42000 generates $64 per week in perpetuity. What is the implied interest rate or rate of return? c.An investment costing $65,000 has a rate of return 12.75 percent and generates a constant monthly cash flow in perpetuity. The first monthly cash flow is paid immediately. Find the value of the constant monthly cash flow. d. Find the future value of the following annuity: $450 per quarter, for twenty years, at 10 percent simple rate