Name the producer to initially sign Elvis Presley and to produce the recordings of the first rockabilly singles. O A. Sam Phillips O B. Alan Freed O C. Di. ck Clark O D. Brian Epstein​

A

Explanation:

Sun Records is an American independent record label founded by producer Sam Phillips in Memphis, Tennessee in February 1952. Sun was the first label to record Elvis Presley, Charlie Rich, Roy Orbison, Jerry Lee Lewis, Carl Perkins, and Johnny Cash.

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation:

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27