def pay(hours,rate):
  gross = hours * rate
  if gross < 100:
    tax = 0.25
  if 100 <= gross < 300:
    tax = 0.35
  if 300 <= gross < 400:
    tax = 0.45
  if gross >= 400:
    tax = 0.50
  taxableAmount = gross * tax
  print "Gross pay:", gross
  print "Net pay:", gross-taxableAmount