Math questions

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8. A sailboat is sailing at 8 1/2 km/h. If the weather conditions and the current do not change. how far will the sailboat travel in 1 1/3 h? show your thinking.

9. The distance to Grandma's house is 4/5 of the distance to Uncle Glen's house. If Uncle Glen's houseis 3 1/2 hours away how long will it take you to get to Grandma's house if you travel the same speed?

7. Jupiter completes about 2 2/5 rotation every 24 hours (an earth day) how many rotation does jupiter completes in one earth week? show your thinking.

12. The karate club is arranging a grading for its members. It takes 3 1/4 hours to test a group of 4 candidates. How long will the clubneed the gym in orderto process 3 groups of 4 candidates each?

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