The answer will depend on the degree to which the number is rounded. Without any indication of that, it is not possible to answer the question sensibly.
11.7 billion rounded to the nearest 10 billion would be 12 billion.
12, because if you rounded to the tenths spot you get 12
12
0.2708
12
12.0107 rounded to the nearest whole number is 12.
11.7 billion rounded to the nearest 10 billion would be 12 billion.
12, because if you rounded to the tenths spot you get 12
12
12
12 is an integer and so already rounded to a hundredths (and more).
0.2708
Rounded to the nearest whole number it is 12
0. the nearest Hundredth would be 0 too. The nearest Whole number would be 2It would be rounded to 2.0
If rounded to a whole number, it would be rounded to 8.
12
sqrt(12) = ±3.4641 (rounded)