Add the 18, 16, and 8 together
Then subtract that number from 50.
18+16+8=42
50-42=8
So, 8 patrons don't like either.
The vertex of this graph is the maximum
6x^3 + 5y^3 + 7y
So the third option.
I'm sorry but I do not understand your question. It is not specified what you are looking for.