Create functions exercise from Javascript in Easy Steps (pg 19). I'm doing basic review working my way up. Once I'm on a more advanced level I can progress to the exercises in Eloquent Javascript

Questions to answer after completing the code:

Check that the functions work as intended. It appears they do not.
Could the default parameters alert lead to this function not working? Looks like yes.
The answers were supposed to be 64, 28, 18, 82. Only 64 was found.
Are there any unexpected errors? Yes. It seems like any character I type here is showing up as an error inflating the error count
I would like to know what went wrong here. It feels like there should be a way to tweak the syntax so I get the correct answers

Created by Sebastien Bacon