Which algebraic expression represents one-fifth of x less than 6.2? A 6.2x
B 6.2 - 0.3x
C 6.2 -1/5x
D. (6 -x ) 0.2

For which rational expression is -2 an excluded value of x?

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

How many terms does the polynomial x^2 y^2 have