It’s interval. It will be right.
One paper hanger can hang one roll of wallpaper in FIVE HOURS.
So, 55 paper hangers can hang 55 rolls of wallpaper in FIVE HOURS.
The third-person omniscient<span> point of view is a method of storytelling in which the narrator knows the thoughts and feelings of all of the characters in the story, as opposed to </span>third-person<span> limited, which adheres closely to one character's -- usually the main character's -- perspective.</span>
You didn't include a picture of the answer choices, but this is what the answer would look like. Pretend the different shapes represent different rows:
ΔΔΔΔ
ββββ
αααα
There are three rows. 4 Books in each row.