There are 89 students in the Oakwood Middle School band. The number of There are 89 students in the Oakwood Middle School band. The number of 8 graders in the band is 5 more than twice the number of 7th graders. The picture below represents this situation. How many 8th graders are in the Oakwood Middle School band?

Two lines parallel to a third line are parallel to each other. always sometimes or never

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers. a) one of the 400 passengers is selected uniformly at random. let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem

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