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 present value factor (1) In Table 3 (present value of 1); Number of Years Involved 7 Discounts per Year Annual Rate Case A 11% Annually Case B 10% 15 Semiannually Semiannually Case C 12% 10 a (a) (b) Case A 8 % 4 periods Case B 5 % 16 periods Case C 6 6 % 12 periods (2) In Table 4 (present value of an annuity of 1): Number of Years Involved Annual Rate Number of Payments Involved Frequency of Payments us Case A 12% 20 20 Annually Case B 12% 7 7 Annually Case C 12% 5 10 Semiannually Case B 12% 7 7 Annually Case C 12% 5 10 Semiannually (a) (b) Case A 8 % de 15 periods Case B 8 de % 4 periods Case C 3 % 8 periods