3out of every 5 picks are orange. if 12 picks are orange, how many picks are there in all?

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

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great