Answer:
(4x+3)/8
Explanation:
Lets assume the integer for value of stock originally = x
On Tuesday, it was decreased by 1/2 , x-1/2 =1/2x
On wednesday, the value inceased by 3/4=1/2x + 3/4= (2x+3)/4
Thursday the value decreased by 3/8 ,= (2x+3)/4 -3/8 =(4x+3)/8