The week in business: Airlines get sued, Cracker Barrel gets a glow-up, and grocery store shrimp goes radioactive

Tipping hit a seven-year low, Cracker Barrel changed its look, and LinkedIn crowned the top AI-focused colleges. Each week, the business world throws us a mix of surprises, frustrations, and big experiments. Some companies are doubling down on old strategies, others are trying bold new moves, and a few are just trying to keep up.