Related Clues:

• Some H.S. math
• Search for the unknown?: Abbr.
• It's full of x's: Abbr.
• High-school math course: Abbr.
• Calc. prerequisite
• ''Solve for x'' subj.
• HS math class
• Subj. with unknowns
• Junior H.S. math, perhaps
• Nation on the Med.
• Rabat's country: Abbr.
• Neighbor of Libya: Abbr.
• Subj. with many unknowns
• Where to see a lot of exes?: Abbr.
• It involves many unknowns: Abbr.