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B. -422/3,4 - 110 11. Brian, Mark, and Jeff are painting a house. Working together they can paint the house is 6 hours, Working alone Brain can paint the house in 15 hours and Jeff can paint the house in 20 houts. How long would it take Mark to paint the house working alone? A. 6 hours B. 8 hours C. 7 hours D. 4 hours foother fpecie thinks that if he works​

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Answer:

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hi hello I don't knowUse the edit icon to pin, add or delete clips.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Tap on a clip to paste it