¿Hay algo en la mesa?
No, hay allí.

I dont know what it is but it translates to

There's something on the table? No, there is there.

I believe the answer is: No, no hay nada allí. This translates to "No, there's nothing there". We can guess that there is nothing on it because the sentence starts with "no". hope this helped :)

Explanation:

answerestan corriendo; i believe this is correct, plz check first good luck;