i need help with a and c only please

a) Felix Corporation is considering a new 4-year expansion project that requires an initial fixed asset investment of RM330,000. The fixed asset will be depreciated straight-line to zero over its 4-year tax life. All net working capital will be recovered at the end of the project. The net working capital will decrease RM12,000. The project is estimated to save the firm RM64,000 in pretax operating cost for 4-year. The salvage value at the end of the project is RM12,000. The tax rate is 30% and the required return for the project is 12%. The Calculate the net present value for this project and should the company accept or reject this project. (7 marks) (CLO2:PLO6:C3) b) Xtraxaganze Bhd. is considering a project that will produce sales of RM28,000 and increase cash expenses by RM17,500. If the project is implemented, taxes will increase by RM3,000. The additional depreciation expense will be RM1,600. An initial cash outlay of RM1,400 is required for net working capital. Calculate the amount of the operating cash flow using the top-down approach. (3 marks) (CLO2:PLO6:C3) c) ColeCola Corporation is considering a new three years expansion project which will require an initial investment on fixed assets of RM3.5 million. Initial investment in net working capital is RM300,000 and the fixed assets will have a market value of RM210,000. The fixed asstes will be depreciated straight line to zero over its three-year to generate RM2.1 million in annual sales, with costs of RM550,000. What is the OCF for this project if the tax rate is 20% ? Suppose the machines falls under three-year MACRS class. What is the project's Year 1, 2, and 3 cash flow? What is the new NPV