math advanced

I didnt know that whiteout was not allowed in the hsc exams and the supervisors didnt say anything about it even though they looked at what I had for the exam multiple times. So I used it for English, japanese beginners and mathematics. Will it affect my mark and will I get penalised for it?

Hey guys! My school has been working through the Cambridge textbook for advanced math which has a lot of difficult 'Challenge Questions' towards the end of the exercise. I was just wondering if those are worthwhile to attempt for HSC practice (like are they test style questions) or are they just...