Engineering Economics. Please help me. i have 30 mins.

QUESTION 2 25 MARKSI (a) (a Smart Enterprise has just purchased a hole-punching machine which cost RM60,000. It has an estimated service life of 5 years. At the end of the five useful years, the estimated salvage value would be RM5,000. The machine is expected to operate 2,500 hours per year. The expected annual operating and maintenance cost would be RM8,000. The current interest rate is 12%. Required: (1) Calculate the annual equivalent cost (Hints: use capital cost recovery method). 19 marks) (ii) What would be the machine cost per hour? [3 marks] (iii) If the firm could earn a net revenue of RM25,000 per year, should it be purchased? [3 marks]