The width of a rectangle is 10 meters. The length of the rectangle is three times as long as its width. Which of the following is equivalent to the perimeter, in meters, of the rectangle?
O (10 + 10 + 30 + 30)
O (10 + 30)
O (10 x 30)
O 2(10 x 30)

Which expression shows the sum of the polynomials with like terms grouped together

What is the result of the following division?

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?