Function is a line points (3,2), (5,8), and (8,y) what is y

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?

How do you write y-10=2 (x-8) in standard form

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air