| 100174 | Models and Applications · Exercise 65 | Medium | |
| 100176 | Models and Applications · Exercise 67 | Medium | |
| 100178 | Models and Applications · Exercise 69 | Medium | |
| 100361 | Other Types of Equations · Try It 1 | Easy | |
| 100363 | Other Types of Equations · Try It 2 | Easy | |
| 100365 | Other Types of Equations · Try It 3 | Easy | |
| 100367 | Other Types of Equations · Try It 4 | Easy | |
| 100370 | Other Types of Equations · Try It 5 | Easy | |
| 100372 | Other Types of Equations · Try It 6 | Easy | |
| 100374 | Other Types of Equations · Try It 7 | Easy | |
| 100376 | Other Types of Equations · Try It 8 | Easy | |
| 100378 | Other Types of Equations · Try It 9 | Easy | |
| 100380 | Other Types of Equations · Try It 10 | Easy | |
| 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 | |
| 100423 | Other Types of Equations · Exercise 43 | Deep | |
| 100425 | Other Types of Equations · Exercise 45 | Deep | |
| 100427 | Other Types of Equations · Exercise 47 | Medium | |
| 100429 | Other Types of Equations · Exercise 49 | Medium | |
| 100431 | Linear Inequalities and Absolute Value Inequalities · Try It 1 | Easy | |
| 100433 | Linear Inequalities and Absolute Value Inequalities · Try It 2 | Easy | |
| 100435 | Linear Inequalities and Absolute Value Inequalities · Try It 3 | Easy | |
| 100437 | Linear Inequalities and Absolute Value Inequalities · Try It 4 | Easy | |
| 100439 | Linear Inequalities and Absolute Value Inequalities · Try It 5 | Easy | |
| 100441 | Linear Inequalities and Absolute Value Inequalities · Try It 6 | Easy | |
| 100443 | Linear Inequalities and Absolute Value Inequalities · Try It 7 | Easy | |
| 100445 | Linear Inequalities and Absolute Value Inequalities · Try It 8 | Easy | |
| 100447 | Linear Inequalities and Absolute Value Inequalities · Try It 9 | Easy | |
| 100453 | Linear Inequalities and Absolute Value Inequalities · Exercise 3 | Easy | |
| 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 | |