I have to agree with Bex, however here are my two cents...
Biz is one of the easier subjects to do - hence why its one of the most popular "electives".
However, it is not so easy that you can just regurgitate the textbook (although you could for year 11) - the biz course is all about tailoring your answer to suit the question, not just regurgitating the syllabus - you have to think about what to include, and not waffle on for 5 pages on something unrelated. Its hard to do very well in, and easy to do ok in.
Compared to its sister subject Economics tho, its a walk in the park - eco involves concepts and maths, which biz doesn't really delve into all that much.
But you could never say its "easy" cuz its a 582 page textbook that needs to be summarised to begin with (which is the biggest single textbook I know of for any HSC course) and then it has to be organised to suit questions that require a discussion of 3 of the 5 topics.