Answer:
Macbeth causes chaos at a celebratory banquet at his castle when he suddenly starts to behave very oddly indeed. The reason why he is absent is very simple - Macbeth has just had him murdered
Explanation:
a word describing the medium
$11.32 = Total amount
$1.88 = Tip amount
$8.72 x 0.0825 = 0.7194
$8.72 + 0.7194 = $9.44
20% x 9.44 = $1.88
$9.44 + $1.88 = $11.32