Answer:
The most tables she can have is 4 tables.
Explanation:
To find how many tables she can have, you need to know the GCF between the two numbers, 12 and 20.
12: 1, 2, 3, 4, 6, 12
20: 1, 2, 4, 5, 10, 20
As you can see, the GCF is 4.
So, the most tables she can have is 4 tables.