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Damon - my way

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whew :) great !
You turn 800.5 into 8.005*10^2 so now you have 8.005 * 10^2 * 2 * 10^6 which is 8.005*2 * 10^8
my way 8*10^4 versus 400*10^4 so 400/8 or 50 times as many of B

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