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Answer:
81 hours
Step-by-step explanation:
1. How much does she work in all of the 6 days.
1answer. 72
1explain. 6 · 12 = 72
2. You need to add 72 to 9
2answer. 81
2explain: 2 + 9 = 11 and 70 + 11 =81
3. You get 81 hours.