Final answer:
Mindy can spend a maximum of $2.62 on a notebook.
Step-by-step explanation:
To determine the most Mindy can spend on a notebook, we need to subtract the amount she has already spent from the total amount she has. Mindy has $10.75 and she spent $3.96 on glue sticks. She still needs to buy 3 pens, which are $1.39 each. So, the total amount Mindy would spend on pens is $1.39 * 3 = $4.17.
To find the most she can spend on a notebook, we subtract the amount spent on glue sticks and pens from the total amount she has. $10.75 - $3.96 - $4.17 = $2.62. Therefore, the most Mindy can spend on a notebook is $2.62.
On a number line, the solution to Part A, which is $2.62, would have a circle at 2.62. Since Mindy can spend any amount less than $2.62 on a notebook, the circle representing the solution is open. The number line would be shaded to the left, indicating amounts less than $2.62.