According to this graffiti, you miss 100 percent of the shots you don’t take.
If Mr. Hall has a completion percentage of 75 + n – n^2 or zero, whichever is greater, and Mr. Oates has a completion percentage of 4*n, where n represents the n’th shot taken by that player, and a total of 25 shots will be taken, when should Mr. Hall stop shooting and pass the damn ball?