BearPark, a bottled water manufacturer, has decided to invest in a banner ad on a national news website. The ad is served 445,717 times each day and typically generates 8,906 clicks per day. Total costs for the banner ad are estimated at 11,580. On average, 25 of those clicking on the advertisement proceed on to the bearpark.com website, but it turns out that the average number of visits to the website via the advertisement is 2.7 . What is the cost per thousand impressions (CPM) for BearPark's ad campaign