In a fictional narrative , the first paragraph should hook the reader and grab their attention. You might do this by describing the setting and giving specific detail in a way that sets the tone for the rest of the story. ... The reader knows the location of the story and the voice of the main character.
Yes, because (12) is referring to a page number.
I mean, if you're writing an essay, this would be correct. But if you're just stating your opinion, that's wouldn't need to be cited.
What information is the one you need to find answers to