Luke is going to repaint both sides of the door of his room. the door is 36 inches long by 80 inches high. his options at the paint store are below. 1 gallon of paint costs $10 and covers 4,400 square inches of area. 12 gallon of paint costs $7 and covers 2,200 square inches of area. if the door requires 2 coats of paint, what is the minimum cost of painting the door of luke's room?

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

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

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save