There are 15 people in the course. Each year the number of people in the chorus increases by 3. There are 30 people in the band. Each year 2 new people join the band. Part A: write a function to represent the number of people in the chorus throughout the years. Part B: write a function to represent the number of people in the band throughout the years.Part C: how many people are the chorus after 9 years? How many people are in the band after the same amount of years?Part D: approximately how many years has the number of people in the chorus and the number of people in the band the same? Justify your answer mathematically.
