How many different course schedules can john have if he is taking seven different classes and each of these classes is offered every period

If 24 people have the flu out of 360 people, how many would have the flu out of 900. choose many ways you could use proportion that david would use to solve this problem

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Need on this geometry question. explain how you did it.