help..

[leonardo selmi]

i have also this program:

write a function called rental_car_costthat takes days as input and returns the cost for renting a car for said number of days. The cost must abide by the following conditions:
Every day you rent the car is $40.
If you rent the car for 3 or more days, you get $20 off your total.
If you rent the car for 7 or more days, you get $50 off your total. (This does not stack with the 20 dollars you get for renting the car over 3 days.)
so i wrote the following code:
def rental_car_cost(days):
        cost = 40*days
        if days >= 7:
            return cost - 50
        elif days >= 3 and days < 7:
            return cost - 20
        else:
            return cost

but it seems not to be right cause the computer answers: Oops, try again! Did you create a function called rental_car_cost?

ii wrote also:

def rental_car_cost(days):
    if days >= 7:
        return (40*days) - 50
    if days >= 3 and < 7:
        return (40*days) - 20
    else:
        return (40*days)

they both work in python shell/idle but not in the exercise in "codecademy"..what do you think? is there a bug?

thanks!

kindest regards
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