3. The student council of Riverside notices that their membership is growing by 2.5% per year. The membership is currently at 40 members. An exponential function to model the size of student council is given as M (n) = 400.025)" where n is the number of years from the current year and M is the number of members. 'n a. How many members will student council have 8 years from now? Show your work. (2 marks) d l m b. How many members did student council have 3 years ago? Show your work. (2 marks)