Given:
A teacher wants to buy graph paper and printer paper.
Let the number of packs of the graph paper = x
And the number of packs of the printer paper = y
The printer paper costs $2 a pack, while the graphing paper cost $3
so, the total cost will be: 2y+3x
She wants to buy at least 7 packs of paper
[tex]x+y\ge7[/tex]And wants to spend at most $30.
[tex]2y+3x\le30[/tex]so, the system of inequalities for the situation will be as follows:
[tex]\begin{gathered} x+y\ge7 \\ 2y+3x\le30 \end{gathered}[/tex]