X= 5 divided by 2. Subtract the 9 from the 24 and divide by the 6.
Answer:

<h2>C. (13p+7) is the right answer.</h2>
The radius is half of the diameter.
To find the circumference, use the equation C=2(pi)r or C=(pi)d.
r meaning radius. d meaning diameter.
(pi) is about 3.14 or 22/7
<span>2a(7a²-3a+9)
=14a^3 - 6a^2 +18a
answer is </span><span>D. 14a³-6a²+18a</span>