Edgar is using computer graphics to build the background images for a new animated film. He is using linear modeling, the process of using linear equations to describe real-world objects. Edgar has identified the functions needed to build an image in the graphics program.

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?

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?