document.write( "Question 826240: The day before yesterday, Billy was 7 years old. Next year, he'll turn 10. How is this possible? \n" ); document.write( "
Algebra.Com's Answer #497953 by Alan3354(69443)\"\" \"About 
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The day before yesterday, Billy was 7 years old. Next year, he'll turn 10. How is this possible?
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\n" ); document.write( "7 and 10 are octal, base 8, numbers.
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