Answer:
Kyle will be 58
Explanation:
So it seems to be that Ryan and Kyle have a 7 year age gap. We know this because of the first half of the question "When Ryan is 10, his brother Kyle is 17." And doing simple math, Kyle is seven years older than Ryan.
Now that we know that, If Ryan is 51, then we just have to add 7.
And there we go! At the end it says to fill in the table, but I don't see one provided. Hopefully what I said helps filling it out though. Good luck!