the questions are connected to the top one

can I get the answers please

A firm purchased some office equipment for a total cost of $300000. The equipment generated net income of $100000 per year. The firm's marginal tax rate is 20%. The equipment was sold at the end of the 4th year for a total of $75000. Assume that MARR is 12%/year. Calculate the net present worth (NPW) of this investment for problems 5-8. 5(15 points). If the firm used the straight line depreciation, NPW = $24800 $32000 $36200 $41500 15 pts Question 6 6 (15 points). If the firm used the SOYD depreciation, NPW $22920 $26750 $29400 $31260 7 (15 points). If the firm used the DDB depreciation, NPW = $23700 $25750 $27440 $29400 Question 8 8 (15 points). If the firm used the MACRS depreciation, NPW $22300 $24640 $26750 $$29800