the second bit is more formal, " You're six years old, aren't you?"
because, the other sounds very demanding or imperative, like as if you have to answer the question. so, it has to be the second line.
Answer:
she provides statistics
Explanation:
the other answers are not in the excerpt
A key, or sometimes a guide.
Answer:
I don’t know but you can get sarcratic it will scan your Questions and tell you the answer it’s in App Store
Explanation:
