So I found this problem here on this website: The first floor of a house consists of a kitchen, playroom, and dining room. The areas of the kitchen, playroom, and dining room are in the ratio 4:3:2. The combined area of these three rooms is 189 square feet.“ and I got the answers, it’s just how did you get the answers. Can y’all tell me in word form instead of displaying a bunch of numbers my brain can’t process? Please and thank you

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

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

Which representation has a constant of variation of -2.5