ANSWER
EXPLANATION
The room represents a rectangular prism or a cuboid.
The dimensions of the room are 30 feet by 16 feet by 8 feet(height).
The volume of a rectangular prism is
Substitute the given values
Simplify:
Hence the cubic feet of air in the room is 3,840ft³.
4x - 5y = 40
4x = 40 + 5y
x = 10 + 5/4y
The x intercept is 10.
The answer is 28. 7x2=14 and then 14x2=28. Remember PEMDAS