document.write( "Question 810820: A desk holder contains 8 pens and 5 pencils. In how many ways can 4 pens or 4 pencils be selected? \n" ); document.write( "
Algebra.Com's Answer #488546 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
8*7*6*5 + 5*4*3*2 = 1680 + 120 = 1800
\n" ); document.write( "---
\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
\n" ); document.write( "---
\n" ); document.write( "Convert fractions, decimals, and percents:
\n" ); document.write( "https://sooeet.com/math/fraction-decimal-percent.php
\n" ); document.write( "---
\n" ); document.write( "Calculate and graph the linear regression of any data set:
\n" ); document.write( "https://sooeet.com/math/linear-regression.php
\n" ); document.write( "
\n" );