Imagine that you are hired to evaluate the potential profitability of growing cover crops on a five-acre field. You gather the following information. i. New or additional costs to be incurred = $10 per acre to establish and maintain cover crops ii. Current costs to be reduced or eliminated = $70 in total fertilizer savings iii. New or additional revenue to be received = Exact amount is unknown, but yields will increase by at least 20-30% and prices will remain constant iv. Current revenue to be lost or reduced = none a. Based ONLY on the information summarized above, is the incremental profit from adding cover crops "positive , "negative", or not able to determine", why? b. What is the incremental profit if you assume that new or additional revenue is Zero