Question
The average score received by Elyse, Kathy, Opal and Fiona in a recent Social Studies test was 73 marks. Elyse and Kathy both got 8t marks each while Opal got half of Fiona's marks. How many marks did Opal score for the test? Express your answer in terms of t.
3 m

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The average score received by Elyse, Kathy, Opal and Fiona in a recent Social Studies test was 73 marks. Elyse and Kathy both got 8t marks each while Opal got half of Fiona's marks. How many marks did Opal score for the test? Express your answer in terms of t.