2.How does finding the area of one face of a triangular pyramid
that is made up of equilateral triangles help
you find the surface area of the triangular
pyramid?

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?