Answer:
They each paid $9.25 for a museum ticket.
Explanation:
Since each friend paid the same amount for their tickets, we can find how much they each paid individually by dividing $55.50 (the total cost) by 6 (the number of friends):
Single ticket price = 55.50 / 6
Single ticket price = 9.25
Therefore, they each paid $9.25 for a museum ticket.