Selena and Michael have to run 1 mile in P. E. class. Selena runs at a rate of 0.5 mile every 10 minutes. Michael runs 0.125 mile every 2.5 minutes. Which statement about Selena and Michael is true?

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

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way