8.5 is not a whole number and so cannot be expressed as a whole number.
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When rounding a number to the nearest whole number, you look at the digit immediately to the right of the decimal point. In this case, the digit is 4, which is less than 5. Therefore, you would round down to 8. So, 8.49 rounded to the nearest whole number is 8.
The smallest whole number that rounds off to 90 to the nearest tens is 85. When rounded to the nearest tens, 85 becomes 90. The largest whole number that rounds off to 90 to the nearest tens is 94. When rounded to the nearest tens, 94 also becomes 90.
.085 is a decimal number equivalent to a fraction. The expression 'whole numbers' refers to positive integers including zero :- 0,1,2,3,4, and so on. .085 can be expressed as a fraction 85/1000 which can be simplified to 17/200
The concept of LCM is makes sense for whole numbers only. Otherwise, any number is a multiple of any other number and any non-zero number is a factor.
102 is 85% of 120