Suppose that mr. green jeans sells $5,000 of wheat to big ben bakery. big ben uses the wheat to make flour and then hamburger buns, which they sell to hamburger heaven for $11,000. hamburger heaven also buys $20,000 of beef from a rancher. hamburger heaven uses the beef and buns to make 10,000 hamburgers which are sold for $5 each. how much do these transactions add to gdp?