How do i turn these decimals into a fraction at its simplest form?

When something repeats, it is often divided by a multipule of 9

when 1 number repeats, it's probably divided by 9,
exmaple, 1/9=0.111111111111

when 2 numbers repeat, then it is probaly divded by 99
example, 14/99=0.14141414

so

21. 0.4444444444=4/9

22. 0.21212121=21/99

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.