typing math symbols and exponents in RISE quiz option?? How do you do this?

I've been using LaTeXiT for mac, it's not difficult to use and you can export as image. It's powerful and attractive and looks very, very pro.

https://www.chachatelier.fr/latexit/

https://www.sharelatex.com/learn/List_of_Greek_letters_and_math_symbols