Dany is considering investing in a 10-year business project with an initial payment of $14,000. The net profits at year 1 are expected to be 0$; however, for each of the following years, it is expected that the net profits will increase by $1,000 from the preceding year. To maintain competitiveness in the market, Dany expects that he will have to invest again $6000 on the project at year 5. a) What is the rate of return of this project? (do not use excel and show your computations) b) Over what ranges of MARRs is this business economically attractive