The points Roosevelt high school has for the second game are 30/2=<<30/2=15>>15 points.
The points Roosevelt high school has for the third game are 15*3=<<15*3=45>>45 points.
The total points Roosevelt high school has for the tournament are 30+15+45+50=<<30+15+45+50=140>>140 points.
The total points Greendale high school has for the tournament are 140-10=<<140-10=130>>130 points.
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