yea u dont need it. My school offers accelerated and ik a few kids last year got 18+ in their hsc for the essay by making up case studies and fully waffling. Business doesn't require as much attention imo as other social sciences like legal or eco. bruh for eco, we need to know the most up to date shit otherwise we are screwed. just know the syllabus dot points and probs like 5-6 stats for each of the functions. even if u forget any stats, just make it up on spot lol.