28. Each of the following provides an example of economies of scale except . (LO7) a) the computer software industry b) the pharmaceutical industry c) Adam Smith's pin factory d) movie and TV production e) the services of psychiatrists, personal trainers, barbers, and hairstylists 29. We find price by dividing (LO8) a) total revenue by output b) output by total revenue c) total cost by output d) output by total cost