Cell #12. Can’t compile the student’s code. Error: TypeError(“unsupported operand type(s) for -: ‘NoneType’ and ‘float’”,)
I passed all the tests and submitted the assignment twice with a clean ipynb. I don’t know which cell is 12. I thought it was a test cell in EX 2 after restarting and executing all cells.
So, I am stumped on this one. Can anyone on staff help since you know the grader and I don’t.