Which of these expressions have negative values? Select all that apply 2 + 2(-3)(7)
-2127 - 9)+4
O (14--2)(-6)
(4 - 10) -(8-(-2))

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.