Answer:
![3y^(2) -6y\geq 200](https://img.qammunity.org/2020/formulas/mathematics/middle-school/bqvoatgcwbe1fhy8y421rws8rt6d578tlu.png)
Explanation:
Let
x------> the length of the deck
y------> the width of the deck
we know that
The area of Ethan's deck is
-----> inequality A
----> equation B
substitute equation B in the inequality A
------> inequality that can be solved to find possible widths for Ethan's deck