HW10 installment 1...
  25A  Rosen5.5  8
  25B  Rosen5.5 10
  25C  Rosen5.5 24

HW10 installment 2...
  26A  Rosen6.1  4
  26B  Rosen6.1  8
  26C  Rosen6.1 34
  26D  Rosen6.2  4cd
  26E  Rosen6.2 10

HW10 installment 3...
  27A  Rosen6.3  8
  27B  Rosen6.3 12
  27C  Rosen6.4 20
  27D  Rosen6.4 26bc