https://www.codecademy.com/courses/python-beginner-P5YtY/1/3?curriculum_id=4f89dab3d788890003000096

Oops, try again. It looks like rental_car_cost returns 120 instead of the correct amount (100) for 3 days.

I did as it says to and I still can't figure this out! I've read so many topics on this and none help me! I always get error messages!

```
def rental_car_cost(days):
return 40 * days
if days >= 7:
return days - 50
elif days >= 3:
return days - 20
```