This table represents Mindy's check register. Her checking account had a balance of $647.60 on November 20. Use the information in the check register to determine the balance of Mindy's checking account after the transaction on December 10.

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$ ■

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .