Can anyone help me, please

Answer:
243
Step-by-step explanation:
Step 1:
Find the volume of each square: do 3/4*3/4*3/4.
Each square's volume is 27/64.
Step 2:
Find the volume of the cube.
Multiply 8*6*12.
8*6*12=576.
Step 3:
Do 576*27/64.
576*27/64=243.