I really need help on this quiz can anyone help

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

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?