Respuesta :
Answer:
20%
Step-by-step explanation:
You start off with the shirt at it's normal price (40/40)
The price decreases to 32$ (Or 32/40)
Each 4 off is 10% off it's price
It is 8 dollars off
4x2 = 8
So
10%x2=20%
So it is 20% off
Hope this helps!