((will give brainliest if correct)) Radio helped overcome racial barriers in music.

-true

- false

a chromatic scale uses the twelve tones of the octave, while a regular scale only uses eight, or seven different notes (as the first note is played twice)

the amount of fabric used and the collar fitting and sleeve lenghts are the two options, that to me, make the most sense.

hope it ,

happy homework/ sutdy/ exam!