Heidi's apartment has 3 times as many rooms as Danielle's apartment. Grant's apartment has 1/9 as many rooms as Heidi's apartment. If Grant's apartment has 2 rooms, how many rooms does Danielle's apartment have? Let's answer step by step:
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Heidi's apartment has 2 * 9 = 18 rooms. Danielle's apartment has 18 / 3 = 6 rooms. The answer: 6.
Assistant