AP Macroeconomics students were given an exam on a particular topic. Each week, they were tested with a comparable exam on the same topic and the average score for the class was measured the function M (1) = 75 - 10log(t + 3) models the average score for the class after tweeks. How many weeks will it take until the
average score of the class is 65?
A. 10 weeks
B. 9 weeks
C. 8 weeks
D. 7 weeks ✅

the correct answer is D