I need help asap plz I will mark branlist

The answer to your question would be 15
You find out what the median is (13) and then you look for the bigger number than what your looking for (15) add it to the list then find the median with the set of numbers and 15 then you got your answer
Find the mean. There will be 6 numbers, so divide by 6
14 = (9 + 12 + 17 + 15 + 13 + x)/6
Simplify
14 = (x + 66)/6
Multiply 6 to both sides
14(6) = (x + 66)/6(6)
84 = x + 66
Subtract 66 from both sides
84 (-66) = x + 66 (-66)
x = 84 - 66
x = 18
18 is your answer for x
hope this helps