can you post step by step instructions on how to answer all of these questions using excel? a walkthrough video would be the best if that is possible. if you can not post a walkthrough video on chegg, comment and i will get in contact with you and make an arrangement that will be mutally benefical. :) thank ya

1. You are interested in buying a new machine that will increase the firm's revenues and decrease its costs. The machine costs $125,000 today (time zero). It will provide positive cash flows of $55,000 in year 1,$35,000 in year 2 and $60,000 in year 3 . The firm's required rate of return (WACC or k ) is 10%. Calculate the NPV, IRR and payback period of the investment. Should we invest? 2. You are interested in buying a new machine that will increase the firm's revenues and decrease its costs. The machine costs $125,000 today (time zero). It will provide positive cash flows of $55,000 per year for 3 years. The firm's required rate of return ( k or WACC) is 12%. Calculate the NPV, IRR and payback period of the investment. Should we invest? 3. You are interested in buying a new machine that will increase the firm's revenues and decrease its costs. The machine costs $250,000 today (time zero). It will provide positive cash flows of $100,000 in year 1,$120,000 in year 2 and $150,000 in year 3 and then a negative cash flow of $60,000 in year 4 . The firm's required rate of return (WACC or k ) is 9%. Calculate the NPV, IRR and payback period of the investment. Should we invest