Eric took a test. All the questions have equal value. He answered 38 of the questions correctly. This was 95% of the test questions. How many total questions were on the test?

I've never been good at math he told he loves but he keeps cheating on me, so it ain't adding up sis

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 function has a range {yly< 5}? question on picture above^