Match each ratio to an equivalent ratio someone help!!

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

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?