Respuesta :

Area of one brick = 6.75x2.58=17.44[tex]ft^{2}[/tex]

Area of 400 bricks = 400x17.44=6975[tex]ft^{2}[/tex]

Total brick area divided by 42' height of wall = 6975÷42=166.07 ft

The correct answer is 166 ft

Hope this helps!!!

<3 -austint1414