document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=635133>Question 635133</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many phone numbers are there with the code 270? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #400139 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=400139\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Assuming you can use any digit in anyway you want, there are 10^7 = 10,000,000 (ten million) phone numbers. \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "If you're not allowed numbers like (270) 000-5555 or (270) 000-1234, then....\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "There are 9 numbers to choose from for the first digit and 10 numbers to choose from for the remaining slots. So there are 9*10^6 = 9,000,000 (nine million) phone numbers possible. This eliminates numbers like (270) 000-5555 or (270) 000-1234 but allows for numbers like (270) 300-5555 or (270) 300-1234\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "If you need to add more restrictions, then let me know.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Note: all of these phone numbers are completely fake and made up. No such real phone numbers exist (I don't think...) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );