If that's 5.00 dollars, it's already rounded to the nearest dollar. if it's something else, you should indicate that.
The answer depends on the units used for 5.00
0
$65.16 rounded to the nearest dollar = $65 65.16 cents rounded to the nearest dollar = $1
$1002 is $1002 when rounded to the nearest dollar. 1002 cents is $10 if rounded to the nearest dollar.
500
500
500
500
500
500
86.24 cent, rounded to the nearest dollar, is 1 dollar.
$682.00 is already rounded to the nearest dollar.
$16,693.00 rounded to the nearest dollar is $16,693.00.