After making a modest entry in the U.S., William Hill’s Nevada expansion will include seven additional sports books across the state. The regulatory approval comes from the Nevada Gaming Control Board, which has issued approval and recommendations about the upcoming betting venues of the operator, citing places in Las Vegas and Laughlin. There will be other sites in North Las Vegas, Reno and throughout the Stateline region, next to the border with California. Positioning properties with California would allow for an additional stream of revenue as Californians are packing up to place legal sports wagers in neighboring Nevada. William Hill…