To represent the constraints of Amy's purchasing scenario as a system of inequalities, we need to derive the inequalities based on the information given:
-
The number of pencils needed is at least twice as many as the number of notebooks. This can be represented as: \[ p \geq 2n \]
-
The total cost of the pencils and notebooks must not exceed Amy's budget of $100. The cost for pencils is $0.25 each and notebooks are $4 each. Thus, this constraint can be expressed as: \[ 0.25p + 4n \leq 100 \]
Therefore, the system of inequalities that represents the constraints is: \[ \begin{cases} p \geq 2n \ 0.25p + 4n \leq 100 \end{cases} \]
This corresponds to the response:
- \( p \geq 2n \)
- \( 0.25p + 4n \leq 100 \)
So the correct selection is:
- \( p \geq 2n \)
- \( 0.25p + 4n \leq 100 \)