The correct answer is 30.
Well it would be at the bottom in the left corner
Volume (rectangular prism)= lenght x width x height
length=5 cm
width=8 cm
Volume=120 cm³
120 cm³=5 cm * 8 cm *heigth
40 cm² * heigth=120 cm³
heigth=120 cm³ / 40 cm²
heigth=3 cm
answer: heigth=3 cm.
