Pls find the surface area pls hurry pls

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

Place the following steps in order to complete the square and solve the quadratic equation,

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?