Write each repeating decimal with a bar over the repetend:
a. 2.72727...
b. 0.816666...

How do the graphs of y = 1/x and y=5/x+6 compare?

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

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?