Which dimensions cannot create a triangle?
three angles measuring 25, 65, and 90%
three angles measuring 502, 307, and 100%
three sides measuring 5 in., 12 in, and 13 in.
three sides measuring 4 ft. 8 ft, and 14 ft

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?