McDonald's is joining the 21st century and is planning to make "mobile order and pay" available to 14,000 locations in the U.S. by the fall. The plans were unveiled at the chain's annual investor day earlier today. Also announced were their plans to make a delivery option available. The rapid upgrade in the way the company does business is a direct result of declining sales, with the company seeing store visits drop by 500 million since 2012 . McDonald's CEO Steve Easterbrook told investors