1)
What is Rachesh?
1.
Radak #1: It is a kind of animal.
2.
Radak #2: It is a mule born from a [female] horse - "Rochvei he'Rechesh" (Esther 8:10).
2)
What is the meaning of "Ish k'Mishpato"?
1.
Radak: It is what was fixed for him to bring.