Brief Exercise G-7 For each of the following cases, indicate (a) what interest rate columns and (b) what number of periods you would refer to in looking up the discount rate. (1) In Table 3 (present value of 1): Case A Case B Case C Number of Annual Rate Years Involved 9% 4 10% 12 10% 9 Discounts per Year Annually Annually Semiannually (a) (b) Case A % periods Case B % periods Case C % periods (2) In Table 4 (present value of an annuity of 1): Case A Case B Case C Number of Number of Frequency of Annual Rate Years Involved Payments Involved Payments 10% 17 17 Annually 8% 6 Annually 8% 4 8 Semiannually 6 (a) (b) Case A % periods Case B % periods Case C C % periods