Which one can hold more? How much more can it hold?

Answer:
Michelle. 70cm³
Step-by-step explanation:
Michelle's popcorn volume: 10cm x 10cm x 13.5cm = 1350cm³
Beyunka's popcorn volume: 8cm x 8cm x 20cm = 1280cm³
Therefore, Michelle's popcorn container can hold more.
1350 - 1280 = 70cm³