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	Water usage in Ames		2014-08-29
		From Abigail: The City of Ames water treatment plant treats 7 million gallons of water per day on average to meet water demands. Hypothetically, if water is withdrawn from a groundwater system with an area of 51.6 square miles (approximate area of Ames and surrounding area), what is the depth of water in inches that would have to be added to the groundwater system annually to replace the water that is withdrawn by the city? Answered by Penny Nom.
	Water use in a rectangular flush tank		2013-05-10
		From milo: A rectangular flush tank 22" by 71/4 contains water to depth of 17" how many gallons of water will be saved if a conservation device reduces the capacity to 3/5 of this amount? And reduced to the nearest tenth Answered by Penny Nom.
	Percent or percentage		2005-11-03
		From Kenneth: Which word should be used in the following? Change a (percent or percentage) to a decimal. Should the word percent be used only when a number precedes it as in 45 percent? Answered by Harley Weston and Chris Fisher.

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