Steven Parker152,726 Points
The instructions ask you to write a function, but it looks like you're creating a variable instead.
Were you able to create the "printer" function in the previous challenge? This one will have the same basic construction, but with two arguments instead of just one. And this time, you'll use a "return" statement to send back the result of doing a little math.
You may want to re-watch the video on functions and then come back to this.