Calculate the following deductions as the tax code allows.

$1,000 spend on Land, sold in year 20.

$1,000 spend on 7 Year MACRS equipment, put in service in year one.

$1,000 Spend on Working Capital, sold in year 10.

$1,000 Spend on a Commercial Building, start depreciation in March of year one.

$1,000 Spend on a Patent with a life of 6 years, with the 1/2 year convention. Start Amortization in year one.

After you have all of the following deduction calculated please calculate the Present Worth of the taxes you will save using a 15% discount rate.