 PITTSBURGH--BUSINESS WIRE--- LRN BacktoSchool--Passport Academy Charter School PACS, a tuition-free, public high school in downtown Pittsburgh for students ages 16 through 21, is kicking off a new school year. PACS grants students who have struggled in more traditional school settings an education option designed to support them as they reach their full potential. On August 30, teachers and students opened their books and laptops to welcome in the new school year in the blended learning environment. Last year 