Answer: Each ticket costs $89.
Explanation:
Let be x = ticket cost without the discount.
Given: Total 8th graders = 12
Discount = $34
Price of ticket after discount = x- 34
Total amount paid = $660
Total amount paid = (Price of ticket after discount) x (Total 8th graders )

Divide both sides by 12.

Add 34 both sides , we get

Hence, Each ticket costs $89.