B and salt water with a density of 27 kg and M3
I dont understand taht to be honest but if i did i wouldve answered them for you
Test norms consist of data that make it possible to determine the relative standing of an individual who has taken a test. By itself, a subject's raw score (e.g., the number of answers that agree with the scoring key) has little meaning. ... Norms provide a basis for comparing the individual with a group.
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