function [ low_tab, medium_tab, high_tab ] =restaurant_tab ( meal )

  tax_rate = 0.11;
  tax = meal * tax_rate;
  charge = meal + tax;

  low_tip = charge * 0.10;
  medium_tip = charge * 0.15;
  high_tip = charge * 0.20;

  low_tab = ceil ( charge + low_tip );
  medium_tab = ceil ( charge + medium_tip );
  high_tab = ceil ( charge + high_tip );

  return
end

