For each of the following relation , determine missing output A: x= -3
| f(x)= -1x3 |

B: x=9
| f(x)= x+1 |

C: X= -2
| f(x)=x^2+3

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.