A turtle can walk 12 miles in 3 miles. What is the average speed of the turtle?

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 value of f(x) = 2.2 for f(-2)?