Answer:
The homeowner will require 9 strips of wallpaper.
Step-by-step explanation:
The question is asking "how many 20 inches fit into 15 feet?".
We know that
1 foot = 12 inches;
therefore, 15 feet will be
15 ft * 12 in/ft = 180 in.
Now, the number of 20 inches wallpaper strips that will fit into 180 in long wall will be
180 in/ 20 in = 9
Therefore, the homeowner will require 9 strips of wallpaper.
