Students in a zoology class took a final exam. They took equivalent forms of the exam at monthly intervals thereafter. After t months, the average score S(t), as a percentage, was found to be given by the following equation, where
t greater than or equals 0.t≥0.
Complete parts (a) through (e) below.
Upper S left parenthesis t right parenthesis equals 78 minus 12 ln left parenthesis t plus 1 right parenthesisS(t)=78−12ln(t+1),
0less than or equals≤tless than or equals≤80