There are 150 teachers and 50 are mathe teachers what percent are math teachers

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

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

Mr. walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?