document.write( "Question 1146635: A flight of stairs has 12 steps. David can go up for 2 step or 3 steps each time. How many way(s) is / are there for David to go up the stairs? \n" ); document.write( "
Algebra.Com's Answer #767921 by Edwin McCravy(20064)\"\" \"About 
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document.write( "We have to know more information.\r\n" );
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document.write( "Must David always take either 2 steps or 3 steps, and never take just 1 step?  Or\r\n" );
document.write( "is taking just 1 step allowed?\r\n" );
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document.write( "He must get to the top of the steps.  Does the top of the steps count as the \r\n" );
document.write( "12th step or the 13th step?\r\n" );
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document.write( "Edwin

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