It says "way to go!" but I have a feeling something is wrong...

def hotel_cost(nights):

return 140*nights

```
def plane_ride_cost(city):
if city=="Charlotte":
return 183
if city=="Tampa":
return 220
if city=="Pittsburgh":
return 222
if city=="Los Angeles":
return 475
def rental_car_cost(days):
if days>=7:
discount=50
cost=40 * days - discount
print cost
return cost
elif days>=3:
discount_two=20
cost=40*days-discount_two
print cost
return cost
else:
cost=40*days
print cost
return cost
def trip_cost(city, days):
return rental_car_cost(days) + hotel_cost(days) + plane_ride_cost(city)
```