Question

What radio station sold the first radio advertisement?

What kind of company bought this advertising time?
What was the cost?

Answer 1

The first radio advertisement was sold by RCA to AT&T in 1922 at a cost of $50.

Step-by-step explanation:

The first radio advertisement was sold by the Radio Corporation of America (RCA) in 1922. The company that bought this advertising time was AT&T, which aired a 10-minute commercial promoting their telephones. The cost of this advertisement was $50.