A conductor that's described as a 750 MCM wire has an area of?

So what test is this from?

Studying for electrician test, online version, and I am stuck. I have 4 answers to choose: 750 cmils, 750 kcmils, 750 in2, 750,000 kcmils

You may need to find another course, as this one clearly is not doing it for you.

Or you can do your own research, let me get you started:

Circular mil - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Circular_mil)

There is a lot more complicated issues to learn in this trade than wire size, how will you do with that, when it arises?