math homework (word problem)

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6.) One week, Kristi worked 3 days at a department store for 3 1/2 h each day. She was paid $9/h.

a) How many hours did Kristi work that week? show your thinking .

b) How much did Kristi earn that week?

7.) Jupiter completes about 2 2/5 rotations every 24 hours (an Earth day). How many rotations does Jupiter complete in one Earth week? Show your thinking .

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 .

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