How many + [plural noun] + [question]?
How much + [uncountable noun] + [question]?
How much + is/are + [thing]?
How much + does/do + [thing] + cost?
How many asks about things you can count. The noun after it is plural.
How much asks about things you can't count, like water, time or money. The noun after it has no -s.
How much also asks what something costs. You don't need the word money.
After how much or how many and the noun, use question order: do, does or be before the subject.
When the noun is the subject of the sentence, there's no do or does.
The answer can be a number or words like a lot, not many or not much.