Functions intermediate 9/11

I need help . what is going right here. what is the problem

Hi @idrisaminou:

Kindly refer to this topic I answered to solve you doubt. In future please also attach a mission link. Let me know if you have further queries. Thanks!

thank you. It work
please how to get mission link?

@idrisaminou The mission link is the same as the url on the top of your screen on that particular step