| 100144 | Models and Applications · Exercise 35 | Medium | |
| 100146 | Models and Applications · Exercise 37 | Medium | |
| 100148 | Models and Applications · Exercise 39 | Medium | |
| 100150 | Models and Applications · Exercise 41 | Medium | |
| 100152 | Models and Applications · Exercise 43 | Medium | |
| 100154 | Models and Applications · Exercise 45 | Medium | |
| 100156 | Models and Applications · Exercise 47 | Medium | |
| 100162 | Models and Applications · Exercise 53 | Medium | |
| 100164 | Models and Applications · Exercise 55 | Medium | |
| 100166 | Models and Applications · Exercise 57 | Medium | |
| 100170 | Models and Applications · Exercise 61 | Medium | |
| 100172 | Models and Applications · Exercise 63 | Medium | |
| 100174 | Models and Applications · Exercise 65 | Medium | |
| 100176 | Models and Applications · Exercise 67 | Medium | |
| 100178 | Models and Applications · Exercise 69 | Medium | |
| 100387 | Other Types of Equations · Exercise 7 | Medium | |
| 100389 | Other Types of Equations · Exercise 9 | Medium | |
| 100391 | Other Types of Equations · Exercise 11 | Medium | |
| 100393 | Other Types of Equations · Exercise 13 | Medium | |
| 100395 | Other Types of Equations · Exercise 15 | Medium | |
| 100397 | Other Types of Equations · Exercise 17 | Medium | |
| 100399 | Other Types of Equations · Exercise 19 | Medium | |
| 100401 | Other Types of Equations · Exercise 21 | Medium | |
| 100403 | Other Types of Equations · Exercise 23 | Medium | |
| 100405 | Other Types of Equations · Exercise 25 | Medium | |
| 100407 | Other Types of Equations · Exercise 27 | Medium | |
| 100409 | Other Types of Equations · Exercise 29 | Medium | |
| 100411 | Other Types of Equations · Exercise 31 | Medium | |
| 100413 | Other Types of Equations · Exercise 33 | Medium | |
| 100415 | Other Types of Equations · Exercise 35 | Medium | |
| 100417 | Other Types of Equations · Exercise 37 | Medium | |
| 100419 | Other Types of Equations · Exercise 39 | Medium | |
| 100421 | Other Types of Equations · Exercise 41 | Medium | |
| 100427 | Other Types of Equations · Exercise 47 | Medium | |
| 100429 | Other Types of Equations · Exercise 49 | Medium | |
| 100456 | Linear Inequalities and Absolute Value Inequalities · Exercise 7 | Medium | |
| 100458 | Linear Inequalities and Absolute Value Inequalities · Exercise 9 | Medium | |
| 100460 | Linear Inequalities and Absolute Value Inequalities · Exercise 11 | Medium | |
| 100462 | Linear Inequalities and Absolute Value Inequalities · Exercise 13 | Medium | |
| 100464 | Linear Inequalities and Absolute Value Inequalities · Exercise 15 | Medium | |
| 100468 | Linear Inequalities and Absolute Value Inequalities · Exercise 19 | Medium | |
| 100470 | Linear Inequalities and Absolute Value Inequalities · Exercise 21 | Medium | |
| 100472 | Linear Inequalities and Absolute Value Inequalities · Exercise 23 | Medium | |
| 100474 | Linear Inequalities and Absolute Value Inequalities · Exercise 25 | Medium | |
| 100476 | Linear Inequalities and Absolute Value Inequalities · Exercise 27 | Medium | |
| 100492 | Linear Inequalities and Absolute Value Inequalities · Exercise 43 | Medium | |
| 100494 | Linear Inequalities and Absolute Value Inequalities · Exercise 45 | Medium | |
| 100496 | Linear Inequalities and Absolute Value Inequalities · Exercise 47 | Medium | |
| 100513 | Linear Inequalities and Absolute Value Inequalities · Review Exercise 67 | Medium | |
| 100515 | Linear Inequalities and Absolute Value Inequalities · Review Exercise 69 | Medium | |