A company has 100 employees. 60% of the employees drive to work. Of the employees who don't drive to work, half take public transportation.  How many employees use public transportation to get to work?
Drive to work:100(.60)=60
Don't Drive to work:100-60=<T>subtract(100, 60)=40
Public Transportation:40(.50)=<T>multiply(40, 0.5)=20.0 employees
