How many additional parking costs would there be after the first hour if charged 55 cents for each half hour?

To determine the additional parking costs after the first hour when the charge is 55 cents for each half hour, you first need to calculate the total amount charged for the additional time.

After the first hour, the charging starts with the next half hour. Since the parking fee is structured to be 55 cents for every half hour, you would simply look at the cost for the subsequent increments.

For the additional half hour, the charge is 55 cents. If you extend this to a full hour, which is two half-hour increments, you would multiply 55 cents by 2, resulting in a total of $1.10.

Thus, the correct answer is $1.10 for the additional parking costs after the first hour.