Factor completely 2x^2 + 9x + 4. a. (2x + 2)(x + 2) b. (2x + 1)(x + 4) c. (2x + 4)(x + 1) d. (2x + 2)(x + 4)

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.