What's this answer ? can someone me ?

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

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )

Is the power produced directly proportional to the wind speed, give reasons for your answer?