The property is inverse operation because he add 8 to both side.
Pemdas start with this then see how your answer comes out then you isolate a variable do that complete your math to get your answer, hope this helped!!
Answer:
Choice C (OS)
Step-by-step explanation:
the radius is half of the diameter which is AB, or any line from point O to the actual circle. And because one option is point O to point S (point on circle) the answer is Choice C (OS)
2.8 ! the two is the whole and the fraction is the 8 after the decimal ! happy learning!