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Robert, First remember that 12% is 12/100. Write down 4 trillion, including all the zeros. Now multiply by 12/100 by canceling two of the zeros in 4 trillion with the two zeros in the denominator of 12/100, and multiplying by 12. I hope this helps, | ||||||||||||
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Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. |