Karlina's cat is stuck on the roof of of the Wetherbee School. If your ladder is 39 feet long and you place the ladder 15 feet from the base of the school, how high can the cat be on the school in order for you to save it?

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

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6