It should be 6, radius is half of the circumference (6/3=2).
Need a picture! Then I will be happy to help :
Answer:
B. subtract 12 from both sides
Step-by-step explanation:
12-4x=54
<u>-12 -12</u>
<u>-</u><u>4</u><u>x</u><u>=</u><u>4</u><u>2</u>
I attached a pic with my work on it. Hope this helps!