If f(-2)=15 and f(15)=-6 then f^-1(-6)=

Answer this question, only if you know the answer. 30 points and brainliest!

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.

Which of the following values are in the range of the function graphed below? check all that apply ! - will give the answer "brainliest! "