Jane has two less than four times the number of pencils (n) John has. select the correct expression to represent how many pencils Jane has. A. 2 - 4n
B. 4n - 8
C. 4n - 2
D. 2n - 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.