11.
Just look at the graph, and you will see that an original inequality is:
[tex]x \leq 1[/tex]
Multiply both sides by 5:
[tex]5x \leq 5[/tex]
Add 6 to both sides:
[tex]5x+6 \leq 11[/tex]
And you will get an equivalent inequality to [tex]x \leq 1[/tex].
12.
Just look at the graph, and you will see that an original inequality is:
[tex]p\ \textgreater \ 2[/tex]
Multiply both sides by 5:
[tex]5p\ \textgreater \ 10[/tex]
Add 4 to both sides:
[tex]5p+4\ \textgreater \ 14[/tex]
And you will get an equivalent inequality to [tex]p\ \textgreater \ 2[/tex].
