A sponge filters water to eat microscopic food. A sponge can filter 8 liters of water in 10 hours or 12 liters in 15 hours. Is this relationship proportional?

Yes.

Step-by-step explanation:

It is given that, A sponge can filter 8 liters of water in 10 hours or 12 liters in 15 hours.

8 L = 10 h

1 h = = 1.25 h

or

12 L = 15 h

1 h = = 1.25 h

Hence, this relationship is proportional.

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice