Need help on this question pls :)

The answer is 11
PLEASE GIVE ME BRAINLIEST

If we remove the variable O by subtracting the distance 2 between, we would get an answer of 11! :)

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?