hi this is my code and when I press save & submit code it is just comes up with the error message saying: get_average(alice) raised the following error: can't multiply sequence by non-int of type 'float'. I know im not very good at coding and probably just made some kinda dumb mistake but pls someone help me try to understand this! <3

```
def average(numbers):
total = sum(numbers)
total = float(total)
total = total / len(numbers)
return total
def get_average(student):
homework = average(student["homework"])
quizzes = average(student["quizzes"])
tests = average(student["tests"])
weighted = ("homework"*0.1)+("quizzes"*0.3)+("tests"*0.6)
return weighted
```