Answer:
8 tickets
Step-by-step explanation:
Take the total cost and divide by the cost of one ticket to get the number of tickets purchased
66 / 8.25
8
64
12 packages with 7 red sheets and 8 green sheets
1. x = -6
2. x = -10
3. x = 12
4. x = 13/2 (can be rewritten as 6 1/2 or 6.5)
5. x = 8
6. x = -3
7. x = -5
8. x = 12
9. x = -13