Answer:
For 10 tickets.
Step-by-step explanation:
Let for x tickets the cost the same for club member & non-members,
For club member,
Membership fee = $ 30,
Ticket price per person = $ 3,'
Thus, the total cost for x tickets = 30 + 3x,
For non-members,
Membership fee = $ 0,
Ticket price per person = $ 6,
Thus, the total cost for x tickets = 0 + 6x,




Hence, for 10 tickets the cost the same for club member & non-members.