Answer:
Yes it's 81
Step-by-step explanation:
9 x 9 = 81
9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = 81
Your welcome
The third option.
67.72
68.89-10.00=58.89 + 15% (8.83) = 67.72