I need help quick. Please do as much as you can (the one that aren’t answered). I’ll give brainliest to the person who answers the most and gives correct answers.

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?

What multiplys to be 1 but adds up to be 4

Two consecutive negative integers have a product of 30. what are the integers?