Answer:

Step-by-step explanation:
The reason is because you don't know the Inital amount she bought and because she visits two days in a row you would multiply
$2,960 each. because $3,000- $40=2,960
Answer: 5 in.
Step-by-step explanation:
Given
The area of the square is 
The side length of the square is 
Area of square

Thus, value of a is 5 inch
What way are you trying to solve
Domain (the range of x values)
Range (the range of the y values)
Domain: (-9, 11)
Range: (-4, 6)