10. The school pool needs to be refilled after it was emptied for winter cleaning. Water flowing through both a small pipe and large pipe can fill the pool in 6 hours. Water flowing through
the small pipe alone can fill the tank in 16 hours. How many hours would it take to fill the
tank using only the large pipe?

Write as a product: ac^2–ad+c^3–cd–bc^2+bd

Find the interior angle of a regular polygon which has 6 sides

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average