Difficulty Level From 1 to 5 (1 is Easiest; 5 is Hardest)
Project 3: Graph Linear Equations: Difficulty Level 4
Project 4: Elimination Method: Difficulty Level 3
Project 5: Explicit Form of Arithmetic Sequence: Difficulty Level 2
Project 6: Arithmetic Sequence Part 2: Difficulty Level 4
Project 7: Arithmetic Series: Difficulty Level 4