K + 1/3 = 5 1/8 . Please help

I’m which figure is point g an orthocenter

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 approximate mark up percentage rate before m equals $1740 marked up from p equals $19,422