. Students in a math class took a final exam and then took equivalent forms of the exam at monthly intervals thereafter. The average score f(t), as a percent, after t months was found to be given by the function f(t)=88-15ln(t+1), 0≤t≤12.

(a) What was the average score on the original exam?

(b) What was the average score after 2 months? 4 months? 6 months? 8 months? 10 months? One year?

(a) What was the average score on the original exam?

(b) What was the average score after 2 months? 4 months? 6 months? 8 months? 10 months? One year?