Answer:
[tex]n = 6\,rods[/tex]
Step-by-step explanation:
The total of legs needed to build the stools are:
[tex]x = (8) \cdot (3)[/tex]
[tex]x = 24[/tex]
Likewise the total length of the legs is:
[tex]L_{tot} = 24\cdot (0.5\,yd)[/tex]
[tex]L_{tot} = 12\,yd[/tex]
Lastly, the quantity of rods that needed to buy is:
[tex]n = \frac{12\,yd}{2\,\frac{yd}{rod} }[/tex]
[tex]n = 6\,rods[/tex]
