Part B: I did the equation ( 35 - 70 ) / ( 20 - 10 ) to find the slope which is -3.5, The best equation would be y = -3.5x + 105

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

This is about circle theorems. someone asap : (

How do i put 3(x+7) in distributive property