Kimberly went to a new animated monster movie yesterday afternoon. When she went into the movie theater, the outside temperature was – 8°F. By the time she left the theater, the temperature had decreased by 6°F.

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?