Answer:
I think it's formal I always write them that way, so I would say formal.
Its usually written as the first sentence of the paragraph (although its not necessary but preferred) It basically includes the main idea or the topic of the paragraph (doesn't have to be word for word), and states the main points of the paragraph briefly.
I’m my opinion I think that you can help a person that has anxiety by talking to them and making them feel comfortable always be kind to them.
Answer: faith in one god
Explanation: there is one god