tolongg dijawab ya we yaaaaaa:)

1.rock music was played and listened in every countries in the world
2.the name that given to the music developed in the early 1950's is rock and roll
3.Elvis Persley is a young singer from Tennesse
4.he singing andhis performed style came to mean rock and roll all over the world
5.Bill Haley and The Comets
6.yes,cause now young people likes rock and roll
7.in 1970's,rock was became a very big business,earned more money anually than any other form of entertainment including the film industry

maaf kalo salah......
semoga membantu