4. Given the following data, solve for the number of years in each case. (Use a financial calculator). Present Value Interest rate Future Value Years $1,200 8% $2,590.71 $16,310 12% $20,459.26 $75,000 3% $182,044.69 $183,650 9% $308,000 5. You expect your newly born child to attend college in 18 years. You have $12,000 to set aside for that purpose. You also expect that the total cost of college education to be $100,000 by that time. Calculate the interest rate at which you have to invest today to achieve your goal. 6. How long does it take to double your money at 9 % interest rate? 7. How long does it take to triple your money at 9% interest rate? 8. Great Lakes Inc. has an unfunded pension liability of $300 million that must be paid in 18 years. The financial analyst wants to discount this liability back to, present for valuation purposes. The appropriate discount rate is 8%. What is the present value of this liability