Can I use Maya for commercial purposes?

Answer 1

Yes, but it depends on your license agreement with Autodesk. I suggest looking at the terms of the agreement of the license you're using to make sure that you're in the clear.

The learning editions should not be for commercial use, but they do have clear pricing plans on the Autodesk website. If you are a student enrolled in some program, you may be able to access a discount on the commercial software, but that would probably depend on your institution.