document.write( "Question 862518: An environmental agency will randomly select four houses from a block containing twenty houses and test them for lead paint. In how many ways can the selections be made? \n" ); document.write( "
Algebra.Com's Answer #519729 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! First house they have 20 choices. \n" ); document.write( "Second house 19 choices. \n" ); document.write( "Third house 18 choices. \n" ); document.write( "Fourth house 17 choices. \n" ); document.write( " |