Feel free to review the bold red chord names and see how well you did. Other than making sure the Roman Numerals represent the correct Major Key (I, IV, V etc.) as well as the correct minor key (i, ii, iii etc.) then you're good to go . . . for now :)
So, how about we go ahead and check out some Dominant 7th chords?
A Few Important Points About Dominant 7th Chords
These chords are super super powerful, but what might surprise you is how they are constructed. Take a look at the A7 chord:
Fun little idea. The F7 here cannot be found directly from the scales shown below. But, see if you can still find it.