Select the correct answer. What is the length of the indicated arc ? A. 2π
B. 4π
C. 9π
D. 18π
E. None of the above

Which table shows a proportional relationship between miles traveled and gas used?

With finding limits of multi variable !

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?