For each of the following cases, indicate (a) to what interest rate columns and (b) to what number of periods you would refer in looking up the discount rate. (1) In Table 3 (present value of 1):

Annual
Rate

Number of
Years Involved

Discounts
per Year

Case A

12%

6

Annually

Case B

10%

11

Annually

Case C

6%

9

Semiannually

Annual
Rate

Number of
Years Involved

Number of
Payments Involved

Frequency of
Payments

Case A

12%

20

20

Annually

Case B

10%

5

5

Annually

Case C

8%

4

8

Semiannually