PLEASE HELP DUE TOMORROW

Answer:
2CO₂ ⇄ 2CO + O₂.
Explanation:
So, for Keq = [CO]²[O₂]/[CO₂]²,
It is clear that the products are CO and O₂, while the reactant is CO₂.
So, the reaction for this is:
2CO₂ ⇄ 2CO + O₂.