I WILL MARK BRAINLIEST Holly is taking a multiple choice reading test. She has decided to guess on questions 3 and 7. On each question, there are four
worded choices plus an all of these choice and a "none of these choice. What is the probability that she answers question 3
correctly and question 7 correctly?
А. 1/36
В. 1/16
C. 1/25
D. 1/2

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

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32