SOLUTION: Robin can clean 72 rooms in 6 days. How many rooms can Robin clean in 9 days?

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Question 1005926: Robin can clean 72 rooms in 6 days.
How many rooms can Robin clean in 9 days?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Robin can clean 72 rooms in 6 days.
How many rooms can Robin clean in 9 days?
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1.5*days --> 1.5*rooms