A square can be changed into a rectangle by increasing the length of the square by 5 units and increasing the width by 3 units. Which expression represents the area of the rectangle in square units? O 2x + 8
O 2x + 15
O x^2 + 8x +15
O x^2 + 15​

Which choice represents the sample space ,s for this event

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

What is the distance between point a and b