question: For each small task accomplished, Jairus gets $0.8 while Jenny gets $0.5. If each of them finished 20 tasks, how much more will Jairus get than Jenny?
answer: The difference of the amount received by Jairus and Jenny is $0.8/task - $0.5/task = $<<0.8-0.5=0.3>>0.3/task.
  So, Jairus will get $0.3/task x 20 tasks = $<<0.3*20=6>>6 more than Jenny.
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