I’m trying to round the divisor to the nearest whole number
198,200 divided by 4.033

For this case we have a division where:

If we want to round the divisor to the nearest whole number we have:

4.033 is equivalent to 4, because:

3 is less than 5, then we have 4.03

3 is less than 5, so we have 4.0 equivalent to 4.

The divisor remains as 4, rounded to the nearest whole number.

$54.99

step-by-step explanation:

$54.99 includes 500 min. if she does not exceed 500 min then her bill is $54.99