NEED ASAP

Use equivalence and inference rules of propositional logic to prove the following argument. If usage does not go doum and bills are late, services are not maintained. It is not the case that if electric rates go up, then usage will go down, nor is it true that either new power plants will be built or bills will not be late. Therefore, services are not maintained. 1. Define your propositions [5 points) 2. Write down the logical argument with your defined propositions [ 8 points] 3. Proof sequence (declare the rules and \# of wffs to use in Reason) [12 points] Steps \& Reason