Geometry

The surface of a cube is painted red and blue, 3 sides of each. The cube is cut into 27 equal sized smaller cubes. Find both answers to the question, "How many cubes have at least 2 sides painted blue?" and "How many cubes have at least 1 side painted red?"

I attempted it but still don't get how to do it. Please be very specific when explaining.

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asked by Susan

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