can you please do all 3 parts

Your frm spends $548.000 per year in regular maintenance of its equipment. Due to the economic downtum, the firm considers forgoing these maintenance expenses for the next 3 years. If it does so, 7 expects it will need to spend $2.1 millon in year 4 replacing failed equipment. a. What is the IRR of the decision to forge maintenance of the equipment? b. Does the IRR rule work for this decision? c. For what costs of capital (COC) is forgoing maintenance a good decision? a. What is the IRR of the decision to forge mainterance of the equipment? The IRR of the decision is N. (Round to two decimal places.)