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Approximately what percentage of americans are affected by schizophrenia

Why do we learn how to calculate the distance of a parabola in 10th grade but not what a 401k is?

The maximum blood pressure in the upper arm of a healthy person is about 120 mmhg. if a vertical tube open to the atmosphere is connected to the vein in the arm of the person, determine how high the blood will rise in the tube. take the density of the blood to be 1040 kg/m3.