Unit 3 SAC scores?

[chickennugget]

Hi everyone, first time posting here! Just for reference, I'm a year 11 student doing my first 3/4 subject so I don't know how this all works. Anyways:
I have gotten my 4th SAC for Biology back and am quite disappointed with the score. I received 87% due to silly mistakes. I'm quite concerned this will affect my study score as I am trying to get a SS of 40+. My other SACS have been a mix, ranging from 80%, 95% to 97%. I looked at the graded distribution and apparently you need over 94% for an A+? Does this mean my chances for A+ is slim? My school is below average so I don't know how this will affect my score...

[Aqualim]

Don't worry too much about making silly mistakes. It's your ranking that matters. If you're ranked in the top 1-3 (since you say a not so good school, you'd be looking closer to 1) and you do well on the exam, you'll get a 40+