If you write to a business or to an organization to ask for information, you are writing a A) letter of inquiry

B) letter to the editor

C) letter to an official

D) letter of complaint

C letter of an official

Explanation:

C letter of an official

including the octave, the answer would 8 notes in a major scale with one note being played twice. ex) c major scale includes: c, d, e, f, g, a, b, c

notice that c is played twice

however, if you were to ask me how many different notes are in a major scale- the answer would be 7.