I believe it is 10 and however many zeros there are and there's 6 so if I'm not mistaken the answer is

.
Answer:
400
Step-by-step explanation:
The answer is A. I looked it up for you on an surface area calculator.
Answer:
A
Step-by-step explanation:
Because not drawing the circle graph of the burger could lead you to draw the wrong conclusion
This is a strange question, and f(x) may not even exist. Why do I say that? Well..
[1] We know that f(a+b) = f(a) + f(b). Therefore, f(0+0) = f(0) + f(0). In other words, f(0) = f(0) + f(0). Subtracting, we see, f(0) - f(0) = f(0) or 0 = f(0).
[2] So, what's the problem? We found the answer, f(0) = 0, right? Maybe, but the second rule says that f(x) is always positive. However, f(0) = 0 is not positive!
Since there is a contradiction, we must either conclude that the single value f(0) does not exist, or that the entire function f(x) does not exist.
To fix this, we could instead say that "f(x) is always nonnegative" and then we would be safe.