Help I really don’t understand this question

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?

Which strategy is used by public health to reduce the incidence of food poisoning?

Suppose your sat score is 2040. a college with an average sat score for admintted students of which of these would most likely be your best option?