Cannon went to the local coffee shop for his dad and cousin to treat them to a caffeinated treat. He spent a total $18.00 for a $15.00 coffee order. What percent was the tip?

Name these type of angles shown check all that applies

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

If the discriminant if a quadratic equation is 4 which statement describes the roots?