document.write( "Question 270418: Billy has 10 books, but he only has space for 6 on his bookshelf. How many different arrangements (order does not matter) of the books can Billy make? \n" ); document.write( "
Algebra.Com's Answer #198126 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Billy has 10 books, but he only has space for 6 on his bookshelf. How many different arrangements (order does not matter) of the books can Billy make?
\n" ); document.write( "Ans: 10P6 = 10!/4! = 10*9*8*7 = 151,200
\n" ); document.write( "===============
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );