Answer
$10,000
Work Step by Step
When you round to the nearest dollar, you are rounding to the nearest whole number, or the ones place. To round 9999.80 to the nearest dollar, draw a "cut-off" line after the ones place: "9999". Next, look at the first number after the cut-off line: "8". If the number is 5 or above, round up to the nearest dollar: "10,000".
Note: You are rounding to the nearest whole number, so do not show any decimal places.