Find the product: (a x 10m) (b x 10n) a) ab x 10mn b) (a + b) x 10mn c) ab x 10m+n d) (a + b) x 10m+n

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

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?