here is a net of a square and four identicle triangles 4cm x 4cm x7cm, if the net were folded and assembled what type of polyhedron would it make?

Which is an equation for the nth terms of the sequence 12,15,18,21

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

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.