6th grade math plsss hellp me

What is the relationship between all triangles that can be drawn given the same three angles

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?

Pls never taught i’m really confused and i rlly need