1 Chapter 2, section 7, page 37

  1.1 problem 1.a
  1.2 problem 1.b
  1.3 problem 1.c
  1.4 problem 1.d
  1.5 problem 1.
  1.6 problem 3.a
  1.7 problem 3.b
  1.8 problem 5.a
  1.9 problem 5.b