Could anyone show me the processes?

The Greentree Lumber Company is attempting to evaluate the profitability of adding another cutting line to its present sawmill operations They would need to purchase two more acres of land for $30,000 (total). The equipment would cost $140,000 and could be depreciated over a five-year recovery period with the MACRS method The new equipment is expected to increase gross revenue by S49.000 per year for five years, and operating expenses will be $14,000 annually for five years It is expected that this cutting line will be closed down after five years. The firm's effective income tax rate is 50% If the company's after-tax MARR is 5% per year, is this a profitable investment? Assume that land recovered at original cost of $30,000 at the end of five years The market value of equipment] is negligible at the end of year 5 Calculate the PW value for this investment PW (5%) = - 9.359 (Round to the nearest dollar) should not add another cutting line to its present sawmill operations