Math question: Given a circle with a radius of 5 units, what is the area of a rectangle whose length is twice the radius and width is equal to the radius?
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Math question: Graph the inequality y > 2x - 3 on a coordinate plane. Construct the line, shade above it, and label a test point.
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Math question: Find the extremum of the function f(x) = 3x^2 + 4x - 5 in the interval [-2, 3].