I have no idea. Where is the diagram.
If A and B are independent, then
.
a.



b. I'm guessing the ? is supposed to stand for intersection. We can use DeMorgan's law for complements here:



c. DeMorgan's law can be used here too:



Y=21/7
Explanation
7(y/7)=7(3/17)
y=7(3/17)
Multiple
y=21/7
Work out 180-96 cus it’s on a straight line then work out 180-130 then add them then and take away from 180
Answer:
.43
Step-by-step explanation: