100 PTS TO WHOEVER ANSWERS (I already know the answer but I'm just being nice :D )Three museums charge an entrance fee based on
the number of visitors in the group. The table lists the fees charged by the museums. At which museum is the entrance fee proportional to the number of visitors?
Entrance fee should be proportional to the number of visitors -- this means that if we divide entrance fee by number of visitors for each of them, we would have the same number.