$6.00
580
60
580
580
580
It will stay at 580, because it is divisible by 10.
580
This all depends what you are rounding up or down by. The nearest whole number would be 580. The nearest tens place would also be 580. If you were rounding it to the nearest hundred it would be 600 and the nearest thousand would be 1,000.
It is: 580
It is 580
To the nearest ten, 580 To the nearest hundred, 600
4.00