Answer:
um
Step-by-step explanation:
Answer:

Step-by-step explanation:

For f(2), the input of the function is 2.
Let x = 2.

Evaluate.



Answer:
16
Step-by-step explanation:
Answer:
Radius = 9
Step-by-step explanation:
Circumference = 2πr
2πr = 18 ×3.14
2πr = 56.5
6.28r = 56.5
r = 56.5/6.28
r = 9.04 round off , 9