If wallpaper costs $1.25 per squared foot, how much will it cost to put new wallpaper in a room with area dimensions of 17 ft long by 16 ft wide?

Calculate the area of the wall using the formula for the area of a rectangle:
[tex]A=b\times h[/tex]Then:
[tex]\begin{gathered} A=(17ft)(16ft) \\ =272ft^2 \end{gathered}[/tex]Since each square foot of wallpaper costs $1.25, multiply 272 times 1.25 to find the total cost of covering the rectangular wall:
[tex]272\times\text{1}.25=340[/tex]Therefore, the total cost would be $340 for one wall.