Respuesta :

[tex]28ft\ 2\dfrac{1}{2}in\\\\1ft=12in\ therefore\ 28ft=28\cdot12in=336in\\\\28ft\ 2\dfrac{1}{2}in=336in+2.5in=338.5in\\\\1in=0.0254m\\\\28ft\ 2.5in=338.5in=338.5\cdot0.0254m\approx8.598m\approx8.6m[/tex]