KC entrepreneurs pitch their businesses to 'Shark Tank'

Area entrepreneurs filtered into Kansas City's Gem Theater Friday, waiting for their turn to head backstage to pitch to "Shark Tank" casting producers. More than 400 entrepreneurs signed up to pitch for the ABC TV show, which features "sharks" who offer candid feedback after listening to business pitches. If the sharks like a concept, they'll make an investment offer. Those pitching Friday will learn in two weeks whether they've advanced to the next round in California. Some of the pitches included…