Answer: 60 fishes.
Step-by-step explanation:
Hi, to answer this question, first, we have to apply the next formula:
Volume of a rectangular prism= length x width x height =50x20x30 = 30,000 in3
Now, we have the volume of the aquarium.
Next we have to multiply the volume by the number of fishes per cubic inch (0.002)
30,000 x 0.002 = 60 fishes
The greatest number of fish that should be in one aquarium is 60
Feel free to ask for more if needed or if you did not understand something.