What is the proportion of the value of the missing number on 75/100 equals. ? /400

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

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

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