hi, im just wondering how does the extra 1 unit that i have is counted in my best 10 units. im sure that that single unit will count towards my uai since im doing quite okay in that subject (ext1 maths) so does the uac or bos ?? splits my worst 2-unit subject? say my mark for physics is 66/100 and ext1 maths is 46/50 what happens next? can anyone clarify this? thanx v.much