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OpenStudy (anonymous):
2. Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 57 miles per hour. Then, in the second hour, she traveled at a speed of 71 miles per hour. What is the percentage increase of Seraphina's speed? If necessary, round to the nearest tenth of a percent. 19.7% 75.4% 24.6% 80.3%
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OpenStudy (anonymous):
will give medal
OpenStudy (anonymous):
@khi
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