636 1030 8979

It appears that you provided a series of numbers: 636, 1030, 8979. However, it's not clear what you need help with regarding these numbers. They could represent a variety of things such as mathematics problems, codes, or reference numbers for questions. To better assist you in preparing for your university exams, please provide more context or ask a specific question related to these numbers, or let me know how these figures are relevant to your exam preparations.