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Factorial Expressions

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12