For this case, we have that by definition, the circumference of a circle is given by:

Where:
d: Is the diameter of the circle given by 2r, that is, twice the radius.
If we have a circle with a diameter equal to 8cm, then the circumference is given by:

ANswer:
Option C

396 is going to be your answer your welcome
Answer:
(x-13)(x+3) = f(x) = x^2 -10x -39
Step-by-step explanation: