Answer :
After Bella's party, there are 13/6 pizzas left, which means that there are 13 slices left. None of the boxes are full, so you put 4/6 of a pizza in a box, 4/6 of a pizza in another box, and 5/6 of a pizza in the third box. Hope this helps!!
The correct answer is that there is thirteen slices of pizza hope this helps you