#8 you do 360= 112+136+x... then you solve for x. X=112. Now you divide this by two since it is an inscribed angle. For #9 I have this very simplified work in the picture. Sorry I did not do #10
Answer:
1/8 :)
Step-by-step explanation:
1/8 is correct because 12.5*8=100
Your answer is (a) because 4 times 2 is 8 but since it's negative 2 it's negative 8