To solve this problem, our first step is to convert all the units to meters, this is because the cost is given in $ per square meter.
Convert the length of the wall, which is given in ft, to meters.
[tex]10.5ft\cdot\frac{0.3048m}{1ft}=3.2m[/tex]Now, find the area of the wall to know how many square meters you need to paint, use the formula for the area of a rectangle:
[tex]\begin{gathered} A=w\cdot l \\ A=20m\cdot3.2m \\ A=64m^2 \end{gathered}[/tex]Use this area to find the cost to
