You purchased a building five years ago for $150,000. Its annual maintenance expense has been $5,000 per year and $1,790 per year on roof repairs. At the end of five years (now), you sell the building for $120,000. During the period of ownership, you rented out the building for $10,000 per year. If your MARR is 8% per year,

a)       Compute the Rate of Return of this investment?

b)       What is the excess, using annual worth method, of the investment?

c)        What is the Net Future Worth of the investment?

d)       What is the payback period?

e)       Was it a good investment? Justify your conclusion on the acceptability of this investment?