Necesit. la versión en español plz 9
Step-by-step explanation:
x+3=12
-3. -3
x=9
awnser is 9
I got none of the above my answer is 1.6 BTUs/ft3. I did 400 x 8 x 3 for total BTUs = 9600 btus and the volume of the room was 20 x 30 x10 ft = 6000 cu ft so 9600/6000= 1.6 BTUs/ft3