She would have $800 left.
$4000 - $2800= 1200
1200 is how much she spent the last 3 months
1200/ 3= 400
400 * 5= $2000
2800- 2000= $800
Answer:
The number is 10.
Step-by-step explanation:

A
Because of 3 adults bought 3 tickets, 9 x 3. 9(3)
4 students bought 4 tickets, 4 x 5, 4(3)
I think the answer is y=-2 because on the y-axis at -2, the line almost gets to that point but doesn't ever get to it
What does this even mean?