J/k - 0.2k when j = 25 and k = 5

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

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

What is the rate of change of a line that passes through (2,-5) and (6,-2)?