A demand schedule is a table which show the quantity of goods demanded by consumers at different price level. The quantity that will be demanded can be calculated using this table if the price level is given.
The u.s began sending troops to Afghanistan in 2001 after the 9/11 attacks on the Twin Towers, and in 2011 the u.s. found Osama bin Laden and killed him. The answer is 2001 tho