Audubon County voters have approved a one-cent local option sales and services tax for area schools. More than 600 people voted yesterday with the measure passing by a margin of 518-to-104. The tax will be in effect for ten years and is expected to generate more than four-and-a-half million dollars for use in financing rebuilding and other projects in the following school systems: Audubon, Exira and Elkhorn-Kimballton.