def tax(bill):
	"""Adds 8% tax to a restaurant bill."""
	bill *= 1.08
	print "With tax: %f" %bill
	return bill

def tip(bill):
	"""Adds 15% tip to a restaurant bill."""
	bill *= 1.15
	print "With tip: %f" %bill
	return bill

meal_cost = 100
meal_with_tax = tax(meal_cost)
meal_with_tip = tip(meal_with_tax)

