Respuesta :
[tex]\bf \stackrel{\textit{a\% of b}}{\cfrac{a}{100}\cdot b}~\hspace{10em}\stackrel{\textit{8\% of 123}}{\cfrac{8}{100}\cdot 123}\implies 9.84 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{\textit{total price}}{123+9.84}~\hfill[/tex]