It should tell you on AADSAS under where it lists information for each school. It will say something like "50$ wanted at time of submission"....or "2x2 size photo"........but beware, I wouldnt totally trust AADSAS. Any "real" information can be found either on school's websites, and by contacting the school. Also, once you submit and your application is complete at schools, the schools usually send you an email telling you that your app is complete and what you need to send (if anything). Hope this helps. 👍