Answer:

5 of c minor

The C major chord V is the G major chord, and contains the notes G, B, and D. This dominant chord's root / starting note is the 5th note (or scale degree) of the C major scale. The roman numeral for number 5 is 'V' and is used to indicate this is the 5th triad chord in the scale.

4 of f major

The F major chord IV is the Bb major chord, and contains the notes Bb, D, and F. This subdominant chord's root / starting note is the 4th note (or scale degree) of the F major scale. The roman numeral for number 4 is 'IV' and is used to indicate this is the 4th triad chord in the scale.

5 of g major

Chord identification

The G major chord V is the D major chord, and contains the notes D, F#, and A. This dominant chord's root / starting note is the 5th note (or scale degree) of the G major scale. The roman numeral for number 5 is 'V' and is used to indicate this is the 5th triad chord in the scale