What you would do first is multiply 22in times 12in, which is \(264in^{2}\).
Then, you would do that times 15in, which is \(3960in^{3}\).
So, the answer to the first question is \(3960in^{3}\).
The next answer would be that no, the volume would not change because taking off the lid will not change how much the aquarium can hold.