Troy Industries purchased a new machine 3 years ago for 80,000. It is being depreciated under MACRS with a 5 year recovery period using the percentages given in Table 4.2 on page 117. Assume a 40% tax rate. A. What is the book value of this machine B. Calculate the firms tax liability if it sold the machine for each of the following amounts: $100,000, $56,000, $23,200 and $15,000.