Answer:
The ACH is 12/h
Solution:
As per the question:
Area of the space, 
Height of the given space, h = 10 ft
Air flow rate, 
Now, to find the Air Change Rate (ACH):
We calculate the Volume of the given space:
Now, the ACH per min:
= 
Now, ACH per hour:
= 
The claim being made in in the above passage is that " It makes financial sense to stop using the penny." (Option B)
<h3>
What textual evidence backs up the above claim?</h3>
The textual evidence that supports the above claim is "Not only does it make financial sense to take the penny out of circulation, but it also makes environmental sense." [Para. 2]
Textual evidence is evidence related to a text which supports claims made in such a text.
Learn more about claims at:
brainly.com/question/2748145
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