A set of middle school student heights are normally distributed with a mean of 150 centimeters and a
standard deviation of 20 centimeters. Let X = the height
of a randomly selected student from this set.
Find P(130 < X < 150).
You may round your answer to two decimal places.

If g(x) = x+1/ x-2 and h (x) =4 - x , what is the value of ( g*h) (-3)?

Which number produces a rationale number when multiplied by 1/5

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