Ratio table
We have that Brian buys 12 notebooks for $9.
This means that the cost of every notebook is:
[tex]\frac{9}{12}[/tex]
if we simplify it:
[tex]\frac{9}{12}=\frac{3}{4}[/tex]
If we construct a ratio table we will have that:
We want to fill it. Since each Notebook costs 3/4
