Please answer carefully An oil refinery finds that it is necessary to treat the waste liquids from a new process before discharging them into a stream. The treatment will cost $$20,000$ the first year, but process improvements will allow the costs to decline by $$2,000$ each year. As an alternative, an outside company will process the wastes for the fixed price of $$10,000/$year throughout the $9$ year period, payable at the beginning of each year. Either way, there is no need to treat the wastes after $9$ years. Use the annual worth method to determine how the wastes should be processed. The company's MARR is $10\%.$