What’s the answer to this?

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

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?