What is the meaning of Ang in these sentences?

@Cole The natural translations would be “What are they referring to?” and “How much do you earn in a week,” but those lose the grammar of Tagalog…
These don’t sound right in English, but a more precise translation would be something like:
1. What is the thing they are referring to?
2. How much is the amount you’re earning in a week?
In these versions it’s more clear that “ang” roughly means “the” in both cases.

also, some "Lite" reading on the topic of "Noun Clauses" at languagecrush.com/bo ok/1/46/chapter .

@jkos thank you so much that helped me a lot!

@repolyo thank you that post was very helpful!