AC101
Hi there,
I would like to confirm that Kk is correct in saying that only 10% your 'fifth subject' will count towards your aggregate score, thus, scoring a scaled 20 vs 30 is the difference of one point (i.e. 2 vs 3), so it shouldn't make too much of a difference.
Additionally, regarding your former question, a higher mark on the exam won't bring up your u3&4 averages per se, but can definitely help you. If you would like a more substantial explanation, you can read through my explanation here: https://discussion.atarnotes.com/d/9605-sac-score-study-score
To summarise, VCAA doesn't care about your SAC averages, but rather just your ranking. Given that your accounting grades are not particularly desirable, it is reasonably foreseeable that you would be ranked quite low, unless they were extremely difficult. VCAA will then use your exam score, as well as the strength and general performance of your classmates to provide you will a study score.
Overall, getting high on the exam will definitely benefit you, however your study score will also be affected by your peers. In the unfortunate scenario that you aren't happy with your score, it won't make a massive difference to your ATAR, unless you also bomb out on one of your other subjects (e.g. get a study score 7 lower than you were expecting for Media).
Hope this helps
