Working on Coding Challenges: "Ballpark Orders"

Question

Hi! I working through the coding examples on here, finally.
Python first. I worked through this one pretty easily. Here is my code, with comments describing my thought process. Can anyone help me figure out why I'm failing the secret cases? Also, is there any way to 'unlock' those cases so that I can examine the input?

"""
I try to keep thing simple, relying on basic functionality
unless i see a direct reason to use something more complex

"""

order = input() # order as str

# menu as an arr
menu = ["Pizza", "Nachos", "Cheeseburger", "Water", "Coke"]

#split order into items[] by space, couldve done in prior step as well
item = order.split()
# printed at the end with tax calculation
cost = 0.00
# iterate through array of items
for i in item:
#deals with a request not on the menu
if i not in menu:
cost += 5
#add prices to cost for each item ordered
elif i in menu:
if i == "Pizza" or i == "Nachos":
cost += 6
elif i == "Cheeseburger":
cost += 10
elif i == "Water":
cost += 4
elif i == "Coke" or i == None:
cost += 5
print(cost*1.07)

"""
I have a love/hate relationship with the way this platform has secret cases
for these coaching examples
I cant think of why this would fail them
"""

Answer 1

Task requires is to round up result to 2 decimal point. So try
print(round( cost*1.07, 2) )

test cases are hidden so it prevents users to hardcode solutions.

Answer 2

Thank you! That makes sense.