6-1) You deposit $5600 in a savings account that pays 12.5% interest, compounded 6) 30 pts annually. How much will your account be worth in 7 years? 6-2)In 1977, the average tuition for one year at an Ivy League school was $1200. Thirty years later, in 2007, the average cost was $14,250. What was the annual growth rate in tuition over the period? 6-3) What is the present value of a 7-year ordinary annuity with annual payments of $319, evaluated at a 18 percent interest rate? 6-4)You have the opportunity to buy a perpetuity which pays $112,564 annually. Your required rate of return on this investment is 13.2 percent . You should be essentially indifferent to buying or not buying the investment if it were offered at what price