Just subtitute 5 as x in the equation given for f.
2(5)+8=18.
A)Add 3 and the continue to add 2 more to three each time to get the next number
B)add 1 and add one to the number one each time to get the the next number
The circumference of a circle is 
Circumference = 
It says to leave in terms of pi which means that we won't solve 
Thus the answer is
.
Hope that helped!
The answer would be x = -7.
Hope this helps!
Answer:
Your answer is 1,476
Step-by-step explanation: