Suppose your grandma gave you $100 when you graduated high school (age 18) & you deposited the amount in this so-called credit union earning 10% interest compounded yearly. Suppose you never touched the money...how much would you have when you are ready to retire (age 65)? Use A = P(1 + (r/n))nt to compute; where A is account balance, P is the original principle ($100), r is the interest rate (10%), t is the number of years (47), and n is the number of times the interest is compounded in a year (1).