The narrator feels as if they are sick,and if she/he got on the bus they will feel humiliated. Insted a couple of friends in her/his class was with the narrator, Ms.Gruwell was the only one who could talk to her/him about anything,and talking to her/his friends made the narrator feel completely better.
30. Half of 10 is 5 and half of 30 is 15
Mark Twain wants to add religious overtones (b)
Because St. Bernard is a dog but has a slightly religious name and a Presbyterian is a dog but also a British church.
Hope it helped,
Happy homework/ study/ exam!
