three cities lie along a perfectly linear route springfield clarksville and allentown molly live in springfield and works in Allentown she makes it to work using two gallons of gas in her car her friend Edgar lives in Allentown and works in Clarksville it takes Edgar one gallon to get to work if molly car averages 26 miles per gallon and Edward car averages 17 miles per gallon about how far apart are Springfield and Clarksvill.