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Mathematics 21 Online
OpenStudy (anonymous):

Medals. Please answer. Mario is making stars for the backdrop of a school play. He draws a star that has one of its points at A (2, 6). He applies a dilation to the star so that the image of A is A'(3, 9). Then Mario decides to use another dilation to transform the image back to the original star. What scale factor should Mario use?

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