How do screen readers handle other aspects of mathematical equations? For example, if I have an equation like "A equals B to the C", how do I represent this such that a screen reader will say it correctly? As far as I can tell, I can't.

I see the FAQ you linked states that I'm supposed to use markup for this. Unfortunately, that means the screen reader needs to understand math markup to work correctly. If that's the case, it seems like we could just include other concerns like Bold X vs X in the math markup as well.