Question
The average score received by Victorium, Opal, Sarah and Sabrina in a recent Social Studies test was 89 marks. Victorium and Opal both got 8b marks each while Sarah got half of Sabrina's marks. How many marks did Sarah score for the test? Express your answer in terms of b.
3 m

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The average score received by Victorium, Opal, Sarah and Sabrina in a recent Social Studies test was 89 marks. Victorium and Opal both got 8b marks each while Sarah got half of Sabrina's marks. How many marks did Sarah score for the test? Express your answer in terms of b.