The heights (in inches) for a sample of 20 male adults are 62, 82, 79, 76, 73, 70, 67, 64, 61, 80, 79, 73, 60, 60, 60, 71, 71, 74, 74, 74
Draw the frequency_polygon for these data using an initial class boundary of 59.5 and a class width of 5. Note that you can add or remove classes from the figure. Label each class with its midpoint.

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Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.