I don't know what is wrong with my code.Can you check and give me the right code.

```
def hotel_cost(nights):
return 140 * nights
def plane_ride_cost(city):
if city == "Charlotte":
return 183
elif city == "Tampa":
return 220
elif city == "Pittsburgh":
return 222
elif city == "Los Angeles":
return 475
def rental_car_cost(days):
cost = 40 * days
if days >= 7:
cost -= 50
elif days >= 3:
cost -= 20
return cost
print rental_car_cost
def trip_cost(city, days):
return plane_ride_cost(city) + rental_car_cost(days) + hotel_cost(days)
trip_cost(days, city, spending_money)
return hotel_cost(days) + plane_ride_cost(city) + rental_car_cost(days) + spending_money()
```

Please help!