What are eliminatino points? i don’t quite understnad the concept. Could someone exlpain it to me please.
Do you mean Qualification Points? Look at section 5.3.3 in The Tournament. You get two Qualification Points for a win, one for a tie, and zero for a loss. Then you get an additional number of Qualification Points equal to the number of Coopertition Points earned by your alliance (either 0, 1, or 2).
For Coopertition Points, see [G41].
If you actual mean Elimination scoring, see section 5.4.4 (which is just straight win-loss, bracket, tournament format).
oh okay, thanks, i just thought that eliminatino points meant that we get less points, you know like subtracting points from our final score.
Nope! Points for seeding (Qualification Points) are only additive. Tie breaking is mentioned in Section 5.3.6.
Thanks 
In [G40] there are different points given for Qualification matches and Elimination matches.
Correct, those are game points (no special meaning). So DURING Qualification Matches, you would get 20 points even if you have 3 robots on a Balanced Alliance Bridge, whereas you would get 40 during Elimination matches, where Elimination matches are the matches after Alliance Selection.