Solution:
The dimensions of the bedroom #3 are given below as
[tex]\begin{gathered} l=13ft \\ w=10.5ft \end{gathered}[/tex]
To calculate the area of the bedroom, we will us eth formula below
[tex]\begin{gathered} A=l\times w \\ A=13ft\times10.5ft \\ A=136.5ft^2 \end{gathered}[/tex]
Hence,
The area of BEDROOM #3 is
[tex]\Rightarrow136.5ft^2[/tex]
Part B:
Given that the cost of the floor is
[tex]\begin{gathered} \text{ \$}7.24=1ft^2 \\ x=136.5ft^2 \\ cross\text{ multiply, we will have} \\ x=136.5\times\text{ \$}7.24 \\ x=\text{ \$}988.26 \end{gathered}[/tex]
Hence,
The cost of floors of bedroom #3 is
[tex]\Rightarrow\text{ \$}988.26[/tex]
