Is -1 a ZERO of the function f(x)=x^3-x^2-17x-15?

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit

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