As he runs his own furniture repair service, 17-year-old Ben Belanger redefines “the high school hustle.” Meet Ben Belanger, a junior at Shawnee Mission South. He’s interested in business and engineering, and like many other teenagers, he enjoys sports (like tennis) as well as hanging out with friends and family outside of school. Oh, and he runs his own foam cushion replacement business. Belanger first got the idea for KC…