This is purely mathematical.
Here we go.
I'm going to give you a series of numbers. Here they are.
2, 9, 7, 9, 12.
This series of numbers represents the number 7.
And here is another group of numbers.
3, 5, 0.
That group of numbers equals 2.
So, the question is how would you numerically write the number ten?
Enter your answer into the Certitude checker. Enter the correct number(s?) in the correct order and the coordinates for the cache will be revealed to you.
You can validate your puzzle solution with
certitude.
Good luck.