Answer questions 6,7,8,9

Show work for each

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.

What is the value of x in the equation7x+2y=48 when y=3

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge