Suppose a machine (defender) was purchased 2 years ago with an initial cost of $30,000. The CCA rate for the machine is 30%. The tax rate is 40%, and the companys MARR is 15%. The operating cost of the machine is $4,000 per year. The current market value of the machine is $8,000, and this value decreases by $2,000 per year until it reaches zero. (a) What is the current net market value of the machine? (b) What will be the Annual Equivalent Cost if we decide to keep the machine for another 3 years? (Use the opportunity cost approach) *** PLease explain how to do it step by step!***