It depends on the degree of rounding.
To the nearest 90 (eg for angles measured in degrees to right angles), 134.99....
89.456 should be rounded to 89 (to the nearest whole number) but it should be rounded UP to 90.
Since 90 is a whole number, rounding 85 to 90 does result in a whole number.
6.9 rounded to the nearest number would be 7. So $6 and 90 cents rounded would be $7.
90
100
94
It depends on the degree of rounding.
It is 90.
'94' rounded to the nearest tens is '90'.
It is 90
90 rounded to the nearest 1, or whole number is 90. This is because 90 is already a current whole number. We know this because there is no decimal point following it.
Your question is obviously missing something. I'm pretty sure that you meant to ask what is the greatest 2 digit number that is still a 2 digit number when rounded to the nearest 10. The answer could be 94 or 95, depending upon how you round 95. 95 could be rounded to 90 or to 100, since it is exactly half way between 90 and 100. There is no hard and fast rule regarding how you should round a number ending in 5.
90.1 rounded to the nearest whole number = 90
The greatest factor of any number is the number itself.
89.456 should be rounded to 89 (to the nearest whole number) but it should be rounded UP to 90.
Since 90 is a whole number, rounding 85 to 90 does result in a whole number.
90