Doing bad in biology, but want 90+ atar (1 Viewer)

[chocolo]

the subjects i'm doing right now is: English Advanced; 2u maths; biology; economics and legal studies.
But my marks for biology are sooooo bad!!! i got like 60%, 50% then 74% and the weightings are 10, 30, 20 respectively. What should I get for trials if i'm aiming for 90+ atar. Am i screwed?

think my ranking's like 28 out of 58 people

 

[Zoinked]

You aren't screwed as long as you continously put in effort in all subjects throughout the year, but obviously evaluate your situation and spend more time on bio and perhaps allocate some time from your strongest subject.