i think its undifined
maybe it is. Because you can't see something there
Answer:
Step-by-step explanation:

1) 136 is the circumference of a circle with what area? we know C=πd.
136=πd
136/π=d
d=43.290 so the radius is half that, or
r=21.645
taking area as our measure of size,
A=πr²
A=π•21.645²
A=1471.855. answer C is closest. difference is in how they and I rounded
2) c, e, and f
Well, we just need to perform the operations:
- Multiplication:

- Subtraction:

- Addition:

- Division:

So, if you add all the numbers together you get

Or, if you prefer,

I hope this helps you
4x>-4 x>-1
8x <32 x <4
-1 <x <4