Answer:
1) 25 tickets for $10 is the best deal 2) i would suggest that the greatest ammount of tickets should be the cheapest, while the least ammount should be the most expensive. this is because things are generally cheaper when you buy in bulk.
Explanation:
explanaion for #1:
you divide the cost by the ammount of tickets to get how much they cost per ticket. i did it like this:
per ticket
per ticket
per ticket
per ticket
per ticket