help on algebra 2 question

label Algebra
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schedule 1 Day
account_balance_wallet $5

Feb 18th, 2015

1/t = 1/3 + 1/4 = 4/12 + 3/12 = 7/12

t = 12/7 = 1.7 hr/room * 22 rooms = 37.7 hrs

Feb 18th, 2015

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Feb 18th, 2015
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Feb 18th, 2015
Jun 24th, 2017
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