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How do ghosts decide they want to haunt people? The variable z varies Inversely with x. When x is 3, Z has the value 2. What is the value of z When x= 13 ? Round To thousandths place? What percentage of integers in all of numbarland end in a string of 0's in the least significant digits.? What is the mass in grams of 6.85 x 10^23 molecules of carbon dioxide? Can you help me with this multivariable question? http://tinypic.com/r/29awjet/9?