Answer:
1.2
Step-by-step explanation:
First, you cancel out 
to become 
Then that becomes 
Now, you convert the element to a decimal form to be 
Finally, you subtract them (because a negative plus a positive is subtraction) to get the final answer of 1.2
Hope this helps!
That would be 8, its in the center so forget 9 or 7.
Answer:
its 13
Step-by-step explanation:
Its 13 A
So it's part of a diameter with the 40, so you should have taken 180-40=140 then it should have been set equal to 140. So 22x+8=140 then 22x=132 then 132÷22=6 so x=6
