1) How long will it take a lump sum to double 2? What about at ? 2) Find the present value of an annuity that pays $1,000 per month for a period of 10 years Assume the discount rate is on 3) Referring to Question 2, suppose you are asked to find the present value of the same annuity described in Question 2, but the payments do not begin for 25 years. 4) You borrow $65,000 and promise to pay back 598,000 at the end of 15 years. What is the effective annual rate of interest? 5) What is the monthly cost of a simple 30 year home mortgage for $400,000 at 4.232