What is the quotient of 6/7 and 3/14

One-fourth
2
3 and one-third
4

Can someone me do math because i am having a breakdown rn because i don’t get it

If the value of cos330°is√3/2 then find cos 165°.

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.