The correct answers would be "using contractions, slang terms, and colloquial expressions" and "using expressive punctuation". This way the writer brings the topic closer to the reader by making it "sound more like conversation". If you use "formal rules of grammar", it does not sound like a conversation, and "underlining words for emphasis" only draws your attention to those words. Mentioning your friend in the letter doesn't really affect anything.
Answer:
I don't know about this stuff and I think school is cool tho
Answer:
what is this supposed to be? lol
The word prodigious means Immense.
The word desponding means Hopeless.