Ihave a test coming up, can someone me? ; -;

if l and m are parallel, which pairs of angles are congruent?
must be more than one answer

Write an explicit formula that represents the sequence defined by the following recursive formula:

Answer this question, only if you know the answer. 30 points and brainliest!

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