Can I still get about a 85-90 atar with these ranks (2 Viewers)

[Xiye]

School rank consistently in the top 80

27/60 General Maths
20-30/68 Standard English
30/42 Biology
25-30/32 Legal studies
28-32/35 Economics
40-44/46 Chemistry

I know, I really screwed up bad but if I work really hard and get a good external can I get above 84 atar?
BTW the dashes between the numbers r an estimate of where I think, I'm ranked

 

[4Indigoo]

Are those school ranks? Use the matrix ATAR calculator and just input your current raw marks for each subject (approximate if you're not sure) and then type in some random HSC exam results you believe you'd be able to achieve and so what you get. It was only off by 0.05 for my atar.

 

[Xiye]

Yeah they are school ranks