Answer:
C, the third answer choice should be it.
Step-by-step explanation:
720
6! is just 1 x 2 x 3 x 4 x 5 x 6
<em>1) y ≥ x/2</em>
<em>2) y ≤ -x</em>
<em>3) x ≥ 0</em>