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Mathematics 10 Online
OpenStudy (anonymous):

Students in an English class took a final exam. They took equivalent forms of the exam at monthly intervals thereafter. The average score S(t), in percant, after t months was found to be given by S(t)=68-20log(t+1),t greater than or equal to 0. a) what was the average score after 4 months? after 24 months? Round your answers to a whole percent, if necessary.

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