Answer:
represent the supporting ideas and key concepts in the text as well as visually conveying the levels of importance.
Explanation:
Headings in a functional text are helpful because they represent the supporting ideas and key concepts in the text as well as visually conveying the levels of importance.
I hope this will help.
The preposition is 'I' I think. I could be wrong.
Uhmm
A little more specific please.
