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Challenge
Algebraic Expression:
A mathematical phrase involving at least one variable and sometimes numbers and operation symbols.
Altitude to the Hypotenuse
: Find as many as possible proportions that exist in a given situation.
Properties of Parabolas
: Observe how the coefficients of a quadratic equation affect properties on the graph.
Arranging Toothpicks
: What is the total number of toothpicks used to build a rectangular grid?
Number Machine
: What will the number machine give me if I put in 100?