What is the coefficient of the term of degree 2 in the polynomial below? x^6+3 - 2x² + 4x^7 - 4x A. 3 B. -2 c. -4 D. 4 THE ANSWER IS -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.