I'm pretty sure its 5, because theres 15 on the one side and 10 on the other and the <em><u>?</u></em><em><u> </u></em> side would be 5 then.
You need the formula C=πd
18*3.14=56.5
so the answer is 56.5
hope this helps
X = 5 or x = 13.
If you need details, please ask!
Answer:
associative
Step-by-step explanation:
u switched parentheses