2.1 kg = 74.08 ounces.
21.00
20
20.990 rounded to the nearest integer is 21 20.990 rounded to the nearest ten is 20
21 ^^
It is: 21 because 4 is less than 5
21.00
14.56
The area is 99.0 square units.
20
To the nearest whole number: 20
20.990 rounded to the nearest integer is 21 20.990 rounded to the nearest ten is 20
It is 15.
21 ^^
21 rounded to the nearest hundred is zero. -- The even hundred above 21 is 100. -- The even hundred below 21 is zero. -- 21 is closer to the lower one than it is to the higher one.
It then is: 21 because .2 is less than .5
66 feet
It is: 21 because 4 is less than 5