#Calculate the bill
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 = 36
meal_with_tax = tax(meal_cost)
meal_with_tip = tip(meal_with_tax)