WTW218 (2021)Assignment 8 [Total = 10]Surname:First names:Student Number:Last digit:α=The University of Pretoria commits itself to produce academic work of integrity. I affirm that I amaware of and have the read the Rules and Policies of the University, more specifically the DisciplinaryProcedure and the Tests and Examination Rules, which prohibit any unethical, dishonest or improperconduct during tests, assignments, examinations and/or any other forms of assessment. I am awarethat no student or any other person may assist or attempt to assist another student, or obtain help,or attempt to obtain help from another student or any other person during tests, assessments, assign-ments, examinations and/or any other forms of assessment.NB: It is strongly advisable to have attempted most of the exercises in Chapter 3.5 and 3.6 beforestarting this assignment. It is your duty to do the exercises in the textbook. You must complete allquestions.Only selected questions will be marked.