Dave is making a sandwich. He can choose from white or wheat bread. He can choose from turkey or roast beef. He can also choose American cheese, provolone cheese, or Swiss cheese. What is the probability he makes a sandwich with wheat bread and turkey?

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

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

How do you determine if an ordered pair is a solution to a given equation?