The only math you may have a little difficultly with at UoW Commerce would be the economics, finance and accounting mandatory first-year subjects. As long as you work hard in those classes, you'll be fine, and then you can move into a major more focused towards your skills e..g Marketing...
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If you have time, also works. You can also use that, but skip the second related.
Make sure you keep going back to the syllabus. That will keep you on track with what you actually need to know, versus what could just be useful to know.