As the Environmental Health and Safety Manager (EHS Manager), you have been asked to conduct a fire prevention and protection audit of the assembly area, which measures 80 feet by 140 feet. There are currently two 2A10B:C fire extinguishers located in the center of the room on each of the short ends (40 feet on each end of the room). The room hazard level is rated as ordinary with moderate amounts of Class A Combustibles and only minimal amounts of flammable/combustible materials. Based on this information, provide a determination (you must show your math calcuations) as to how many fire extinguishers are needed for this area and provide comments on their placement.