Answer: The question states that Alexandra paid $7 to park her car for 3 hours at the parking garage. We are also told that the garage charges a constant hourly parking rate.
To find the hourly parking rate, we can divide the total amount paid by the number of hours parked.
In this case, the total amount paid is $7 and the number of hours parked is 3.
So, the hourly parking rate can be calculated as $7 divided by 3, which is approximately $2.33.
Therefore, the parking garage charges an hourly parking rate of approximately $2.33.