For each of the following cases, indicate (a) to what rate columns, and (b) to what number of periods you would refer in looking up the interest factor.

1. In a future value of 1 table: Annual Rate Number of Years Invested Compounded (a) Rate of Interest (b) Number of Periods a 10% 11 Annually % b. 8% 7 Quarterly % C. 8% 17 Semiannually % 2. In a present value of an annuity of 1 table: Annual Rate Number of Years Invested Number of Rents Involved Frequency of Rents (a) Rate of Interest (b) Number of Periods 10% 28 28 Annually % a. b. 10% 15 30 Semiannually % c. 12% 7 28 Quarterly %