Active TIME REMAINING
57:39
The local skating rink pays Mary a fixed rate per pupil plus a base amount to work as a skating instructor. She ears
$90 for instructing 15 students on Monday afternoon. Last Friday, she earned $62 for working with 8 students. Lisa is
also a skating instructor. She receives half the base amount that Mary does, but she is paid twice as much per
student. Who would earn more money instructing a class of 20 students?
O Lisa would earn $120 more than Mary
O Lisa would eam $65 more than Mary.
O Mary would eam $15 more than Lisa
O Mary would earn $10 more than Lisa.
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