Hi! Pls help ASAP it is khan academy pls and thx! :)

If the class was going to get a class pet and 5 picked fish and 7 pick bird and 8 picked rabbits have many students were in the

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

Which table represents a linear function? i'll give brainliest to first answer ^'^