a square pyramid has a volume of 400 cubic centimeters. the length of the base is 10 centimeters. what is the height of the pyramid

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

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How to solve a simultaneous equation involved with fractions?