[tex]First\ we\ should\ calculate\ Area\ of\ the\ wall:\\\\
A=6*200=1200ft^2\\\\
Secondly\ calculate\ area\ of\ one\ brick\\\\
a=16*8=128ft^2\\\\
Dividing\ Area\ of\ wall\ by\ area\ of\ brick\ we \ will\ find\ number\\ of\ bricks:\\\\
\frac{A}{a}=\frac{1200ft^2}{128ft^2}= 9,375\\\\
It \ would\ take\ about\ 10 \ bricks.
[/tex]
