2,000 trillion. or 2 quadrillion
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Two trillion is 2*10^12. A cent is 1/100 of a dollar, or 10^(-2) dollars. Two trillion pennies is thus 2*10^12 * 10^(-2) = 2*10^10 dollars. Expressed in words, that would be $20 billion.
2000
20 cents is twenty pennies.
Well, isn't that a happy little question! If you have 2000 pennies, you can exchange them for $20. That's because there are 100 pennies in a dollar, so when you have 2000 pennies, you have 20 groups of 100, which equals $20. Happy counting!
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