Communities in nine U.S. states that have been hard-hit by coal layoffs are being promised more than 3,000 jobs in several industries through a multimillion-dollar federal grant. Officials for the Appalachian Regional Commission and other agencies announced the 29 projects totaling nearly $39 million Wednesday at a news conference in Huntington, West Virginia. The investments are expected to create or retain more than 3,400 jobs in agriculture, health care, manufacturing, technology and other industries. The projects are intended to help communities in Texas and in eight Appalachian states: Alabama, Kentucky, Mississippi, Ohio, Pennsylvania, Tennessee, Virginia and West Virginia. …