1. (2,2) 2. (-2,-3) 3. (-4,7) 4. (5,-1)
5. (4,-5) 6. Infinite 7. (-1,5) 8. NO SOL
9. (-10,-1) 10. (-4,-5) 11. adult: $4 child: $9
12. 53 adults 41 students 13. dashed line, shade below
14. dashed line, shade left
15. 80 people the price is the same. if 125 people attend they need to choose Old Mill Pond because it is less per person.
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