(5 points)\n9. explain why circulation and ratings systems determine how much money different advertisements…

Brief Explanations:

Circulation measures reach (number of readers/viewers). Higher circulation means more potential customers for advertisers, so they pay more. Ratings systems (e.g., in TV) show audience size and demographics. Advertisers target specific groups. Higher - rated shows or media with better - targeted audiences can charge more for ads.

Answer:

Circulation and ratings systems determine ad costs because they reflect the potential reach and desirability of the audience for advertisers. Higher circulation and better ratings mean more exposure to the right target market, justifying higher ad prices.