Answer:
If the input is 8, the output will be 16. If it is 9, the output will be 18.
Explanation:
The output is the input multiplied by 2
The input of 1 is multiplied by 2 to get the output of 2.
The input of 6 is multiplied by 2 to get the output of 12.
The input of 7 is multiplied by 2 to get the output of 14.
This will continue with every input, whatever the number is (or n), it will be multiplied by 2 in order to get the output.