Slope = - 9/5 y = - 5

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?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)