Anyone know how to solve this?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

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?