What is the total distance, in yards, that Henry will ride each day? If necessary, round the distance to the nearest hundredth.
Henry will ride
yards each day.

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

Me because some of question i don’t understand

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?