Taxes

hours.py

def math(hours, wage, tax):
    pretax = hours * wage #figures gross income
    taxes = pretax * tax #figures how much goes into taxes
    leftover = pretax - taxes #figures how much will be leftover
    print "You have made $",pretax
    print "Put $", taxes, " in the bank for taxes."
    print "$", leftover, " is yours!!" 

print "Figure out how much to put in the bank for taxes."
print "These figures are based on working in Colorado" 
print "and making less then $30,000 a year."

hours = input("How many hours did you work? ")
wage = input("How much do you get paid per hour? ")
tax = .27 #your tax rate in decimal form (27% = .27)

math(hours, wage, tax)

This is great! You should add a space after the ? marks

Added