The operating revenues of the three largest business segments for Time Warner, Inc., for a recent year follow. Each segment includes a number of businesses, examples of which are indicated in parentheses. Time Warner, Inc. Segment Revenues (in millions) Turner (cable networks and digital media) $10,596 Home Box Office (pay television) 5,615 Warner Bros. (films, television, and videos) 12,993 Assume that the variable costs as a percent of sales for each segment are as follows: Turner 40% Home Box Office 35% Warner Bros. 25%