Answer:
{3,23,39}
Explanation:
I think that thing inside the box says 4x-5.
The numbers we are putting in are 2,7, and 11.
So when we put 2 in we get 4(2)-5 which is 8-5=3.
When we put 7 in we get 4(7)-5 which is 28-5=23.
When we put 11 in we get 4(11)-5 which is 44-5=39
So the answer is {3,23,39}.