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Number of correct responses

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Reference no: EM131043899

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The percentage score on a test varies directly as the number of correct responses. Rita answered 24 questions correctly and earned a score of 60%. What would her percentage score have been if she had answered 34 questions correctly?
Suppose $2,800 is invested in an account at an annual interest rate of 4.7% compounded continuously. How long (to the nearest tenth of a year) will it take the investment to double in size?

Reference no: EM131043899

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