So, I'm assuming you need to find the inequality of the length of the rectangle. So, since we know the perimeter of a rectangle is:
[tex]P = 2(l+w)[/tex]
And you are given the w (width), and also given that the perimeter's at least 776cm:
[tex]772 \geq 2(33+l)[/tex]
We just solve for l:
[tex]772 \geq 66+2l[/tex]
[tex]706 \geq 2l[/tex]
[tex] \frac{706}{2} \geq l [/tex]
[tex]353 \geq l[/tex]
So your answer is:
[tex]l \leq 353[/tex]
