What numbers are entered into the TI84 Plus "TMV" function to calculate the r% where it says PVIF/PVIFA?

For example, when I go to Apps > Finance > TMV Solver, what should be entered into "N=", "PV=", "PMT=", and "FV=" to calculate the "I%=" (alpha enter)

Jiminys Cricket Farm issued a 20-year, 7 percent semiannual coupon bond 5 years ago. The bond currently sells for 94 percent of its face value. The companys tax rate is 24 percent. The book value of the debt issue is $45 million. In addition, the company has a second debt issue, a zero coupon bond with 10 years left to maturity; the book value of this issue is $30 million, and the bonds sell for 65 percent of par.

a.	What is the companys total book value of debt? (Enter your answer in dollars, not millions of dollars, e.g. 1,234,567.)
b.	What is the companys total market value of debt? (Enter your answer in dollars, not millions of dollars, e.g. 1,234,567.)
c.	What is the aftertax cost of debt? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)

Po = $940 = $35(PVIFAR%,30) + $1,000(PVIFR%.30) R= 3.840% YTM = 2 * 3.840% = 7.68% The aftertax cost of the coupon bonds is: RD= .0768(1 24) RD= .0584, or 5.84% The YTM of the zero coupon bonds is: Pz= $650 = $1,000(PVIFR%,20) R= 2.177% YTM = 2 2.177% = 4.35% So, the aftertax cost of the zero coupon bonds is: Rz= 0435(1 24) Rz= 0331, or 3.31%