Answer
sorry i dont know i wish i could help
Ok so I uploaded the picture of how to do the promblem step by step so you know :)
Answer:
i think is c tell me if im right

so... you tells us, which filling rate is the bigger and thus faster one?
Step-by-step explanation:
1. yes 4+16 = 20
2. yes 32 - 4 = 28
3. yes 4(10) = 40
4. no 24/6 = 4