My question: Where is V15 and how do I find it?
The question referred to in the practice test:
Refer to the figure 21, area 2 below: What is the floor of controlled airspace along V15?
The correct answer was 1200 ft AGL.
I want to thank @757toga, and @JScarry for the help on this. I made an 88 on my Drone certification that I took today (10/11/2018)