Answer:
See blow
Step-by-step explanation:
A: The area of the floor would be length times width, so [tex]4m^2n^2\cdot 3m^2n=12m^4n^3[/tex].
B: Plug in values and we get 12288 square feet.
C: The volume would be length times width times height, so [tex]12m^4n^3\cdot mn=12m^5n^4[/tex].
D: Plug in values and we get 98304 cubit feet.