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

$($a$)$

$($b$)$

Case A

$9\%$

periods

Case B

$14\%$

periods

$14\%$

periods

$(2)$ In Table $4($present value of an annuity of $1)$: