Your 4.875 rounded off is 4.9 to one decimal. When rounding off to one decimal, we look at the second decimal. When the second decimal is 5 or more, we round the first decimal up by one. In this case, the second decimal is 7, and that means we round the first decimal, the 8, up by one, and that makes it 9. That's where the 4.9 came from.
2.75 rounded off to one decimal place = 2.8
3.91 rounded off to one decimal place = 3.9
21.99 rounded to one decimal place
99.99 rounded off to one decimal place = 100.0
0.333
0.0133 rounded off to one decimal place = 0.0
4.15 can be rounded off to 4.2 to one decimal place
2.75 rounded off to one decimal place = 2.8
The answer is 20.820.768^6 rounded off is 10
3.91 rounded off to one decimal place = 3.9
21.99 rounded to one decimal place
The correct answer is 8.0
99.99 rounded off to one decimal place = 100.0
0.333
6.32 rounded to one decimal is 6.3.
It is: 22755.0 rounded to one decimal
It is already rounded to exactly that degree.