Horizon Wireless, a cellular telephone company, is expanding into a new era. Relay towers are necessary to

Question:

Horizon Wireless, a cellular telephone company, is expanding into a new era. Relay towers are necessary to provide wireless telephone coverage to the different areas of the city. A grid is superimposed on a map of the city to help determine where the towers should be located. The grid consists of 8 areas labeled A through H. Six possible tower locations (numbered 1-6) have been identified, and each location could serve several areas. The table below indicates the areas served by each of the towers.