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30M+15R=900In a certain year, Rodney earned a total of $900 mowing lawns and raking leaves for his neighbors. He received $30 for each lawn he mowed and $15 for each job raking leaves he had. In the formula above, M represents the number of lawns Rodney mowed for his neighbors and R represents the number of jobs raking leaves he had during the year.If Rodney mowed 15 lawns that year, how many jobs raking leaves did he have?A.15B.20C.30D.90
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