Would you rather
have Cheez-It's to cover a rectangle witj
A length of 9 and a perimeter of 22
or
A length of 5 and a perimeter of 20
I assume (?) you want to eat as many cheez-it's as possible.
In that case, the width of the first is $\frac{22}{2}-9=2$, and the width of the second is $\frac{20}{2}-5=5$.
So it's a $9\times 2$ rectangle and a $5\times 5$ rectangle. Which has greater area? (In other words, which of $9\times 2$ and $5\times 5$ is larger)