Question 54107
I'm not sure how you're supposed to write your conditional statements.  Verbally, you could say:If you are a postal worker, then you are a federal employee.  Jim is a postal worker, then he is a federal employee'
Or:
All postal workers are federal employees
Jim is a postal worker
________________________________________
Jim is a federal employee

Another way to do this is:

Let P=postal workers
Let Q=federal employee

P--->Q
P
______
Q

There will be other ways later more than likely.
I can't make circles, so I'm going to try to talk you through it.  Draw a little circle inside of a big circle.  Label the little circle (all postal workers).  The little circle always gets the ALL things. Label the outer circle (federal employees).
Use an x to represent Jim.  They said that he was a postal worker, so put the x in the little circle labeled (postal worker).  Is the x also in the (federal employees) circle?  Yes.  The whole little circle is inside the big circle so this is a Valid argument.
I'll try an illustration, imagine the parnethesis as the little circle and the brakets as the big circle.
[federal employees(x postal workers)]
Is the x inside of the braket? Yes. Then it's a valid argument.
Hope that helps.