5. Travis just won a lottery which gives him a choice between the following two payment options: a. He will receive a one-time payment of $100,000 right now, OR b. He will receive $10,000 every year for the next 20 years. Which option Travis should go for? Suppose the interest rate is 5%. (Hint: find the present value of the annuity and compare it with the lump sum amount in option a] 6. Assume that you will pay $60 a month at the end of each of the next 24 months. The future value of the annuity is $3000. Compute the appropriate rate of interest. You can use financial calculator to solve this problem. [You have to use a negative sign for the PMT. Do you remember why?) 7. The future value of an annuity is $3,000. There will be monthly payments for the next 2 years (N = 2*12 = 24). If the interest rate is 4%, how much money will you have to put every month so that you can receive $3,000 two years from now