I joined audio clips together where did they go?

I joined three audio clips together, which I need to edit and bring on a flash drive to my class. I don’t know where the joined clip is, or how to edit it all together. Where are the joined clips?

Please be more descriptive.
Describe precisely what you did, what happened, and what you expected to happen.

I cut four audio clips from a podcast in order to edit them together for a podcasting class I’m taking. When I copied what I thought were the four clips, only the fourth one appeared. I’m confused about where the first three clips I cut out went to and how I do put into the edit I need to make?

How did you do that?