Please help me

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?

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]