The entertainment industry in the united states is dominated by viacom, disney, and time warner. these companies operate in what type of market?

The answer is "Oligopoly".

Oligopoly is a market structure with few firms, none of which can shield the others from having huge impact. The focus proportion estimates the piece of the overall industry of the biggest firms. An imposing business model is one firm, duopoly is two firms and oligopoly is at least two firms. There is no exact maximum breaking point to the quantity of firms in an oligopoly, however the number must be low enough that the activities of one firm altogether impact the others.  

you had 23.00$ because 28 - 5 = 23 then put it in dollar form

administrative jobs normally have someone answering phone calls and scheduling appointments, filing patient or customer information, making sure the front of the office looks nice to those who enter the building. administrative jobs can also include making sure the manager has everything they need for meetings, making delivers and much more. administrative jobs are important to most businesses as are customer service focused as they are often one of the first impressions a consumer sees of a business.