Addison and Nolan are reading the same book. At the beginning of the month, Addison was on page 7 and Nolan was on page 47. Addison will read 11 pages per day and Nolan will read 6 pages per day. Let AA represent the page of the book that Addison is on at the end of tt days into the month, and let NN represent the page of the book that Nolan is on at the end of tt days into the month. Write an equation for each situation, in terms of t, t, and determine whether Addison or Nolan is farther along in the book after 4 days.