Final answer:
The volume of the fish tank is found by dividing the total number of fish by the given density. In this case, it is 50 ft³, making Option C the correct answer.
Step-by-step explanation:
The question requests the calculation of the volume of a fish tank based on a given fish density and the total number of fish in the tank. To find the volume, we will use the density formula:
Density = Number of fish / Volume
Given the density, 0.3 fish per cubic foot (fish/ft³), and the total number of fish, 15, we can rearrange the formula to solve for the volume.
Volume = Number of fish / Density
Substituting the given values:
Volume = 15 fish / 0.3 fish/ft³
Volume = 50 ft³
Therefore, the volume of the tank is 50 cubic feet, and the correct answer is Option C.