Rodriguez, who began working with Li in August, has improved his charge's ability to control her emotions by giving her homework, including writing self-affirmations.

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Still, used cars are usually less expensive overall, as long as the buyer does a lot of homework, including a thorough inspection by a good mechanic.

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I'm afraid that many critics, including Kilson, haven't done their homework.

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Students can enter their specific homework problems and get immediate answers, including a "Show steps" feature for math-related queries.

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