576 is rounded already rounded to the nearest tenth - nearest unit, even.
576 cannot be rounded to the nearest tenth because it has no tenth decimal place. 576 can however be rounded by its tens place, which would be: 580. This is because the "6" in the ones place is either equal to or greater than 5.
576.0
It is 232.4 when rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth
10.5
33.8
45.1
It is then 52.8 when rounded to the nearest tenth
It is then 56.5 when rounded to the nearest tenth
It is 232.4 when rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth
It is 0.8 when rounded to the nearest tenth
4.4
10775.9
2.7
54.4
28.6
965.4
2.1