Someone help pleaseee ill give brainliest! multiply. show all your work including completing the boxes and using circles, colored underlines, OR. grouping to identify the like terms before you simplify. show all steps. (5x - 1) (6x^2 + 3x + 8)

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

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'