A severe winter ice storm has swept across North Carolina and Virginia, followed by a foot of snow and frigid, singledigit temperatures. These weather conditions have resulted in numerous downed power lines and power outages, causing dangerous conditions for much of the population. Local utility companies have been overwhelmed and have requested assistance from unaffected utility companies across the Southeast. The following table shows the number of utility trucks with crews available from 5 different companies in Georgia, South Carolina, and Florida; the demand for crews in 7 different areas that local companies cannot get to; and the weekly cost (in $1,000s) of a crew going to a specific area (based on the visiting company's normal charges, the distance the crew has to come, and living expenses in an area). The local companies want to determine the number of crews that should be sent from each utility to each affected area to minimize total weekly costs