What’s the answer to these factored out?

Guys i really need or i have to stay late up night

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?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year