What is the nearest whole percent of 31?

When only separate discreet points are graphed it is called?

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?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28