Could y’all help me with both pls a and b

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.