Answer:
22.25 inches
Explanation:
Since in the question it is mentioned that the mitch wants to buy a poster and wants to put on a wall that is between his door of the bathroom and the closet door
Also the space between these two doors is 22.25 inches
So based on the above information, the width of the poster should be equivalent to the given space i.e. 22.25 inches and the same is to be considered