Here are the answers to the word problems on the worksheet (pages 1 and 2). I have included all of the problems on page 1, in case you would like to practice them (!!).
http://www.shenet.org/middle/acadia/sromano/srdocuments/worksheetpg1.pdf
http://www.shenet.org/middle/acadia/sromano/srdocuments/worksheetpg2.pdf