Anna beth has a freshwater fish tank and a saltwater fish tank. they are both cubes the side length of the freshwater tank is 15 cm. the side length of the saltwater

tank is 20 cm.

The volume of a cube is calculated by the formula V = s^3, where s is the side length of the cube.

Therefore, the volume of the freshwater tank would be 15^3 = 3375 cm^3, and the volume of the saltwater tank would be 20^3 = 8000 cm^3.

Overall, the saltwater tank is larger in volume compared to the freshwater tank.