Let p be the number of pounds of candy Joe will buy, since he will spend at most $72 on candy, and each pound has a cors of $6 we get:
[tex]p\times6\le72.[/tex]Dividing by 6 the above inequality we get:
[tex]\begin{gathered} \frac{p\times6}{6}\le\frac{72}{6}, \\ p\le12. \end{gathered}[/tex]Answer:
[tex]p\le12.[/tex]