Find the distance between the two given points.
3. a(-2, 8), b(10, -1)

Which of the following is correct interpretation of the expression -4+13

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount