Linn plans to wallpaper the 4 walls in her bedroom. the measurements are 9’ by 11’ by 8’. how many single rolls of wallpaper should she buy?
*note: each single roll covers 72 square feet.

There are 4 rolls she should buy.

Step-by-step explanation:

Since we have given that

Length of wall = 9 feet

Width of wall = 11 feet

Height of wall = 8 feet

As we know the formula for "Area of four walls ":

Area of each single roll covers = 72 square feet

So, Number of single rolls of wallpaper is given by

Hence, there are 4 rolls she should buy.

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