Your assignment for this week is to solve the following problems: 

• Chapter 10: problems:  10.1(a &b) 10.4(a); 10.5(a).
• Chapter 11: problems : 11.1(a); 11.3 (a and b); 11.9
• Chapter 12:  problems:12.1;12.3 (a, b, & c);  12.9 (a, b &c) 

Please show your calculations for these problems.