Question

Dave's optometrist used medicine to dilate his eyes. Before dilation, his pupils had a diameter of 2.1 millimeters. After dilation, his pupils had a diameter of 6.3 millimeters. What was the scale factor of the dilation?​

Answer 1

2

Explanation:

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Answer 2

Explanation:

6.3 divided by 2.1 equals 3.

3 is the scale factor