12. Wendy sliced a loaf of bread into 12
equal slices. She used 4 of the slices to
make sandwiches. What fraction of the
loaf of bread was left?

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

What are “like terms”? why can we only add like terms?

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