8.21
29.999999, 29.999998
0
30
3000
which three digit numbers round to 500 when rounded to the nearest hundred , and also round to the 460 when rounded to the nearest ten
9.2
9.2
455 to 464
455 to 464
That depends on whether the numbers are rounded to the nearest tenth, the nearest whole number, the nearest ten, the nearest hundred, or the nearest thousand. Each choice produces a different answer.
Usually numbers are rounded to numbers, not letters.