Astone dropped from a bridge strikes the water 2.2 s later. how high is the bridge above thewater

Since you are giving no information whatsoever, the formula could be:

S = (1/2)g.t², where s is the distance, 9 =9.8 m/s² and t = time
S = (1/2).(9.8)(2.2)² ans S= 23.7 meters

C, e, and a (hope it )