IMO, ACCG theory answers were always way longer than they needed to be. Give your answer and justify it, there isn't much else to add really. Try not to copy directly from the textbook or lecture material. A lot of students do this and I've found it annoys the tutors more. Bullet points are probably fine if your justifying why you do or don't agree with something. Probably 1-2 paragraphs are fine for any other answers.
If your writing out things like journals, balance sheets etc., always complete them fully, in the format presented to you in the lecture. Do not follow textbook formatting unless you are completely unsure. Always put titles.
In the early accounting subjects, your actual numerical answers aren't as important as trying to get the presentation and formats right, learning debits and credits, and account names. Of course, having a balance sheet that balances is always important, but it's only homework. You won't be penalised for having incorrect answers, only for having genuine attempts.
I think ACCG100/ACCG101 have changed how they present content since I've done them, so I'm not entirely sure what you are covering.