Can you pls help me ty

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585