The Ebbinghaus's Law of Forgetting states that if a task is learned at a performance level P0, then after a time interval t, the

Question

The Ebbinghaus's Law of Forgetting states that if a task is learned at a performance level P0, then after a time interval t, the performance level P satisfies the relationship log P = log P0 - c log(t+1), where C is a constant that depends on the type of task and t is measured in months. Use the law to determine a student's expected score on a math test six months after the student scores an 80 on the test covering the same material. Assume C = 0.2. Round the intermediate steps to five decimal places. Round the final answer to the nearest whole number.

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