The 8th grade does. All you do is divide each number by the amount of hours worked. So 6th grade 170/55 7th 112/4 and 8th 192/6 In the end its 6th= 3 dollars an hour 7th= 28 dolars an hour and 8th gets 32dollars an hour so they have the highest rate
<h2><em>750 gallons of water flows through the pipe in = 50 seconds.
</em></h2><h2><em>350 gallons of water will flow in =50/750 x 330= = </em><u><em>22 seconds.</em></u></h2>
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