2.1 Practice Page 11 Questions 1-4ac, 13-17
2.2 Practice Page 18 Questions 1, 3-5, 7, 9
2.3 Practice Page 24 Questions 2(abc), 4(abc), 5, 7, and choose either 9, 11, 13, or 16, 17, 18
2.4 Practice Page 11 Questions 7-11ac, 18, 23
Page 33 Questions 2-26 Evens