The length of a rectangle is 6.7 more than 2 times the width. if the perimeter of the rectangle is 57.2 cm, what are its dimensions? show all work. a. length=21.3 cm; width=7.3 cm b. length=7.3 cm; width=21.3 cm c. length=21.3 cm; width=14 cm d. length=7.9 cm; width=14 cm

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

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

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?