What has two fewer sides then a heptagon

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

Suppose medical records indicate that the length of newborn babies (in inches) is normally distributed with a mean of 20 and a standard deviation of 2.6. find the probability that a given infant is between 14.8 and 25.2 inches long.

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