Jennys grandparents want to start a college fund for her newborn baby. They would like to provide four years of college when their grandchild reaches age 18. The current cost of a high quality education at Texas State University is $15,000 annually and is expected to increase at a rate of 9% per year indefinitely. The general inflation rate is expected to be 4.5%. Assuming all payments occur at the beginning of the year and they can earn 8.5% on their investments annually, a. How much would they need to invest in a single sum to accomplish their goal? b. How much would they need to invest annually? c. How much would they need to invest annually if they wanted the investment to be level in real dollars?