Answer:
B) 
Step-by-step explanation:

Hope this helps
Answer:
x = 21
Step-by-step explanation:
The 2 angles form a straight angle and are supplementary, thus
7x + 9 + 2x - 18 = 180, that is
9x - 9 = 180 ( add 9 to both sides )
9x = 189 ( divide both sides by 9 )
x = 21
Answer: A
Step-by-step explanation: Just sreach it up BURH
Hey!
Diameter is ½ of the radius. To find the radius when you have the diameter, divide by 2.
For example, if the diameter is 12, the the radius would be:

<em>That means your answer will be C.</em>

Answer:
the answer is B
Step-by-step explanation: