What is the solution to the equation

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

10% of 1,900,000. show me how you got the answer

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?