Answer: C) 5(t+3.5)=3(2t+2.75) , Each ticket costs $9.25.
Explanation:
Let t=cost of each of Arjun's tickets.
Arjun bought 5 tickets, he was charged an online service fee of $3.50 per ticket.
Total cost for Arjun = 5 (t+3.50)
As Emilia paid twice as Arjun, cost per ticket for Emilia = 2t
She bought 3 tickets and charged a service fee of $2.75 per ticket.
Total cost for Emilia = 3(2t+2.75)
If they same amount then

Hence, cost of each of Arjun's tickets = $9.25
Hence, the correct option is (C).