a) Your friend decides to operate a toilet facility in his compound, but the only available location on the compound is just behind his neighbor, Mr. Mensah's bedroom window. (i) Describe the benefits your friend will derive from this business venture (ii) Describe the challenges his business will pose to his neighbor Mr. Mensah (iii) Using the PESTLE analysis, advise your friend on what to do with his toilet business and why? b) Find the effective rate of interest corresponding to a nominal rate of 21% per year compounded i) annually ii) semi-annually iii) quarterly iv) monthly v) weekly (52weeks/year)