To order the pizzas based on the number of slices eaten from greatest to least, we first identify the number of slices eaten from each pizza:
- Pepperoni pizza: 7 slices eaten
- Cheese pizza: 13 slices eaten
- Mushroom pizza: 5 slices eaten
Now, we can order them:
- Cheese pizza: 13 slices
- Pepperoni pizza: 7 slices
- Mushroom pizza: 5 slices
So, the order from greatest to least based on the number of slices eaten is:
- Cheese pizza
- Pepperoni pizza
- Mushroom pizza