Final answer:
Online advertisers pay a rate called CPM, which means Cost Per Mille, representing the cost per thousand ad impressions. Online advertisers pay a rate called a CPM (Cost Per Thousand). This rate represents the cost that advertisers pay for every thousand impressions of their ads.
Step-by-step explanation:
Online advertisers pay a rate called a CPM, which stands for Cost Per Mille (Mille means thousand in Latin). This rate refers to the cost advertisers pay for one thousand views or impressions of their advertisement. As an example, if an advertiser pays a CPM of $2.00, this means they pay $2.00 for every thousand times their ad is displayed to users on a website or platform. Online advertisers pay a rate called a CPM (Cost Per Thousand). This rate represents the cost that advertisers pay for every thousand impressions of their ads.