The sum of two numvbers is 21. the second number is six times the first. what are the two numbers

Which fraction is not equivalent to 8/12 a. 2/3 b. 24/36 c. 4/10 d. 6/10

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

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?