A small wood-carving company mailed 190 advertisements, some requiring 33 - cents in postage and others requiring 55-cents in postage. If the total cost for the
mailings was $75.90, how many mailings that require 33-cent stamps were sent?

In the diagram below, tan θ = sqrt 3. what is the value of m?

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

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