Mathematics, 14.12.2020 02:50 tapiamelissa6

Last year Johnny took 4.5 hours to put holiday lights on his house by himself. The following year, his wife, Amanda helped him. Together, it took them 2.88 hours to put the lights up. How long would Amanda take to put up the lights if she did it by herself?

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Last year Johnny took 4.5 hours to put holiday lights on his house by himself. The following year, h...

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