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On the last 5 quizzes Marco has earned a total of 21 out of 25 possible points. if he has a perfect score on the

On the last 5 quizzes Marco has earned a total of 21 out of 25 possible points. if he has a perfect score on the next several quizzes, exactly how many points will he need to bring his average up to 90%?

a) Write a rational equation to represent the situation

b)Solve the equation. How many points does Marco need to raise his percent to 90%?

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