Which of the following inequalities contains points only in the first and second quadrants? y  > 4x2  − 1y  ≤ 2x2  + 1y  > −2x2  + 3y  > 2x2  − 3x  + 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.