Given:
Wallpaper was applied to one rectangular wall of a large room. The dimensions of the wall is 42 feet and 25.5 feet.
Total cost of wallpaper was $771.12
Required:
What was the cost, in dollars, of the wallpaper per square feet.
Step-by-step explanation:
We know the area of rectangle is length multiplied by breadth.
Here, we have
![\begin{gathered} A\text{rea of wall =}42*25.5 \\ =1071 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/d49jwcqi3ckmrkbboj62hiv3cxz9fsl3vl.png)
Now,
The cost of wallpaper per square feet is
![\begin{gathered} =(771.12)/(1071) \\ =0.72 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/u4i38hgedbxznn7qu2kaths87yygaj9z4e.png)
Answer:
Hence, $0.72 is the answer.