Respuesta :

sqdancefan
Your total cost is ...
  (dinner cost) + 8% * (dinner cost) + 15% * (dinner cost)
  = (dinner cost)*(1 + .08 + .15)
  = 1.23*(dinner cost)
  = 1.23 * $8.99 = $11.06

The total cost of your meal is $11.06.