9, Lesson 9, Unit 5, Grade 8, OpenUp icon
Problem Set

Practice Problems

Lesson 9. Unit 5. Grade 8 Open Up Resources

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This Problem Set is a part of the Lesson 9, Unit 5, Grade 8. Practice Problems: On the first day after the new moon, 2% of the moon's surface is illuminated. On the second day, 6% is illuminated. Based on this information, predict the day on which the moon's surface is 50% illuminated and 100% illuminated.

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