I need help ASAP on this problem.

What is the value of x? enter your answer in the box. (cm)

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

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.