What is "re" in the key of A minor?

The interval from scale degree 1 and 3 in the major scale is:

What is the subdominant in C major?

C-D-E-F in the C major scale = 1-2-3-4

C-D-E-F in the A natural minor scale = 3-4-5-6

The C major scale and A minor (natural) scale have all 7 pitches in common. 

D is what scale degree in A minor?

What is the relationship between the keys of C major and A minor?

The relative major to the key of A minor is:

C up to G is a P5 (perfect 5th).

This interval is scale degrees 1 to 5, or "do" to "sol" in C major.

The dominant in C major is G. 

E-F-E is 3-4-3 in C major.

E-F-E is _______ in A minor.

The parallel key of C major is

The second tetrachord in A minor, E-F-G-A, represents _________________ . 

B-D-F is 7-2-4 in the C major scale.

In the key of C, the "ii chord" is: 

(in the Nashville Number System "NSS" represented as the "2- chord")

In the C major scale, the "mediant" is E.

In the A minor scale, 1-3-5 are the notes A-C#-E

If "B" is the leading tone, what scale is this? (check all that apply)