# algebra

students in a biology class just took a final exam. a formula for predicting the average exam grade on a similar test t months later is.
s(t)=78-15log(t+1)
(a)find the students average score when they first took the final exam.
(b)what would be the expected average score be on a retest after 4 months.

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2. 👎 0
3. 👁 165
1. I know the answers I just am not sure how to work the problem to get them.
(a)78
(b)67.5

Thank you

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2. 👎 0
posted by selina

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