You just divide them, let me know if you want the actual answers, but these are all just dividing
Answer:
0.25 = 25%
40 players * 0.25 percent = 10 players
10 players did <u><em>NOT </em></u> like their positions.
(the 2 teams is a trick to throw you off)
The answer to your question is:
+4
-4, -3, -2, -1, 0, 1, 2, 3, 4
I think the answer is 16x^2+1