2. which statement shows the numbers ordered correctly? (eligible content covered: m05.a-t.1.1.4 dok: 3) *
0.8> 0.5> 0.2> 0.9
0.9 > 0.8 > 0.5 > 0.2
0.2 < 0.8 < 0.5 < 0.9
0.5 < 0.9 < 0.2 < 0.

Can someone answer these problems for me

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

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)