The length of a rectangle is twice it's width. the perimeter of the rectangle is 42cm label the diagram with the correct length and width of the rectangle.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Which expression is equivalent to 3^3 + 2^2?

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?