It would be 72cm bc u need to add up all the line in the back to
I say the answers is A but if you mean ventilation in the area of the room then answer B
texting, phone calls, putting on makeup, brushing hair, movies playing in car, loud music, children, and that's pretty much all I could think of
please give <u>BRAINLIEST ANSWER └[T‸T]┘</u>
