In the 1940s and '50s, billboard rated music based on which three sources of information?

For the answer to the question above, there is no internet and poll at that time so they depended onStore sales about the albums,
radio, and How many times it was played on a jukebox.

I hope this helps. Have a nice day!

Iwould like a photo instead of all this and you can’t just go out asking for a paragraph thinking someone will be like oh yeah here it is

C.east asiais the answer.