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x
The rectangular fence will have length x and width y, and we know that the distance around, the perimeter (2x+2y), should not exceed 380 ft. We also know that the length should be at least 110 ft, so x=110.
Now we can set up our inequality:
[tex]2(110)+2y \leq 380[/tex]
[tex]220+2y \leq 380[/tex]
[tex]2y \leq 160[/tex]
[tex]y \leq 80[/tex]