Answer :
i think it is 25
because 4 to get to 9 is 5 then 9 to get to 16 is 7 so i think it is going to be 9 next so 9 plus 16 is = 25
because 4 to get to 9 is 5 then 9 to get to 16 is 7 so i think it is going to be 9 next so 9 plus 16 is = 25