You managed to violate ALL of the rules in one posting. Good job!
1. You posted more than one question.
2. You didn't actually ask a question (except for part E, which I answered in general terms below). Nobody can tell what it is you need to do with these. We aren't mind readers.
3. You didn't explain what is giving you difficulty.
4. You didn't show the work you have done so far (Or maybe you did and therefore qualify as a contender of Lazy Math Student of the Week).
Repost.
Information for part E:
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it