HW9 installment 1...
  22A Rosen4.6 10ac
  22B Rosen4.6 16ad
  22C Rosen4.6 34
  22D Rosen4.6 38

HW9 installment 2...
  23A Rosen4.7  4
  23B Rosen4.7  6

HW9 installment 3...
  24A Rosen5.1 10
  24B Rosen5.1 22
  24C Rosen5.1 30