Final Answer:
The cost of installing a strip of wallpaper around the room is $255.83.
Step-by-step explanation:
To find the cost of installing a strip of wallpaper around the room, we need to first calculate the perimeter of the room. The perimeter is the total length of all the sides of the room added together. In this case, the perimeter is:
Perimeter = 2(length + width)
Perimeter = 2(19 feet + 3 feet)
Perimeter = 44 feet
Next, we need to multiply the perimeter by the cost of the wallpaper per foot. In this case, the cost is $0.91 per foot. Therefore, the cost of the wallpaper is:
Cost = Perimeter * Cost per foot
Cost = 44 feet * $0.91 per foot
Cost = $40.04
Therefore, the cost of installing a strip of wallpaper around the room is $40.04.