A: Mathematics is a requirement of all the STEM careers, that is
For most of them, if your marks are above the 60% and you also have Physical Science with a similar mark , you stand a good chance to be accepted. (Apart from English, it does not matter what the rest of your subjects are, as long as your overall marks meet the requirements.)
IMPORTANT: Most qualifications (at all institutions) will also be open to you with those subjects; except for Art where usually a portfolio of art work is required.
So in a word: the world is your oyster!
The best advice is to download the prospectus/student guide which most institutions offer.
Note: you must try to get the one for the year you intend to study.