Answer:
1557 cubic feet
Step-by-step explanation:
The volume of a rectangular prism is found by multiplying its base area by its height:
[tex]\Large\boxed{\rm Volume = Base \;Area \times Height}[/tex]
In this case, the base area is the floor of the bathroom, which is 173 square feet, and the height is the height of the walls, which is 9 feet.
Substitute these values into the volume formula:
[tex]\rm Volume = 173\; ft^2 \times 9 \; ft\\\\\\\rm Volume = 1557 \; ft^3\\\\\\[/tex]
Therefore, the volume of the bathroom is 1557 cubic feet.