Just the page with your Bio Information (picture, name, etc), the page with your visa and the page with your I-94 stapled to it.
Praetorian, I don't find any reference to the bio information pages as required evidence, can you point me to where it says it needs to be submitted? I didn't submit my bio pages. I submitted visa and I-94 stapled page for I-485, and I-94 stapled page for I-765.