Waterworld properties to rewrite each expression as an expression that does not use parentheses (b + 3) + 6

Which of the following tables represents exponential functions?

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

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.