Q:

How do I import a dxf?

I am a noob with blender. Please be as specific as possible. College students have been doing this for me, but I am unable to understand them.

A:

There are various dxf import / export plugins, but they are not enabled by default. One of these is specifically for Import (read carefully).
In the User Preferences window find the Add-ons tab.

Then when it's ticked, the .dxf import option becomes available in the File->Import menu

