I need to understand how to calculate the ROI, residual income and EVA for the following: Company looking at investing in equipment that costs...

I need to understand how to calculate the ROI, residual income and EVA for the following:

Company looking at investing in equipment that costs $105,000. Old equipment can be sold for $2000, has book value of $50,000. Annual rate of return is 20%, tax rate is 30%. Companies current info is as follows:

Sales