4.00
$4.00
399 to the nearest tens is 400
399 round to 400
399 rounded to the nearest hundred is 400. 399 rounded to the nearest tens is also 400.
$6.00
$3
400
0 Dollars.
500
It is: 400
400
The answer depends on the units used for 12.84. For example, 12.84 cents to the nearest dollar is 0 dollars.