Mathematics, 31.01.2020 20:42 scasemere
Jeff can put shingles on a house in 9 hours while david can shingle the same house in 6 hours. if the two work together, how long would it take them to shingle the house? about 3 hours about 3 hours and 30 minutes about 4 hours about 4 hours and 30 minutes
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Jeff can put shingles on a house in 9 hours while david can shingle the same house in 6 hours. if th...
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