6 to the power of 2 minus 2 to the power of 4 minus 7 times 2

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

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Write the factored form of this trinomial 9x^2+18x-7