Quick quiz

[Isura]

Equity quiz.

You have AA vs average player. Flop is 9d 8c 4c.

A) what is a typical range that villain will check/call a bet with ?
B) what is your equity against that range? (No pokerstove!)
C) Now you have A9 on the same flop. What is your equity ?
D) Since we couldn't use pokerstove for this quiz, list at least 2 factors that you used to conclude on an equity number.

edit: Ranges for A) are not the most important part of this quiz. Assume if you want that you opened in 2nd position and he called in the BB