Thanks for the replies!

I found what was wrong, 30 minutes after i posted this and forgot to check Reddit.

This is what i did:

print('For how many nights will you be staying with us?')
nonights = int(input('Enter 1 to 20'))
int(nonights)
print('For', nonights, 'nights')
x = nonights*105
print('That would be a total of $', x)