What's wrong about this...? Help~

Oops, try again. get_average(alice) raised the following error: unsupported operand type(s) for +: 'int' and 'str'

```
Replace this line with your code.
def get_average(student):
homework = average(student["homework"])
quizzes = average(student["quizzes"])
tests = average(["tests"])
return homework*0.1 + quizzes*0.3 + tests*0.6
```