A:AnswerIt does seem to perform very well, however, I have not used it specifically for a videoconference but I have used older tablets with no issues.
A:AnswerThere are a few "basic" built in apps with this tablet she can use for that. You can also by a stylus (even the basic soft tip styluses should work) and have her write out the words if thats easier.
A:AnswerDepends on what device your mirroring to. It can definitely screen mirror to a different device. However if your wondering if it can mirror a device to it, no.
A:AnswerThe camera isnt "top of the line", but as long as there is enough light it should work fine for taking a picture like that. The base version only uses Wi-Fi though, so you may need to look into a version that uses cellular if you don't regularly have Wi-Fi.
A:AnswerTechnically yes. The website should work, but there may be viewing issues because of the aspect ratio of the screen. As far as the app, if it's on the Google Play Store in a tablet version (there's a spot on the app page that tells you if it has other versions) then it will work on this.