Chandra earns $12.75 per hour at her job. How many hours will she have to work to earn $331.50 a) Let h = the number of hours she works. Write the equation you would use to solve this problem.
b) Now solve your equation
She would need to work
hours

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

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?