Ranks
English Advance: 22/24
Mathematics Ext 2: 3/3
Mathematics Ext 1: 9/15
Chemistry: 7/12
Physics: 5/18
Economics: 6/10 (Open High School)
School rank: 240
2 unit Maths: around top 5/36.
I really want an atar 90+. If i don't get the estimate to be this, what can I do to get it?