The question in placed in the PNG

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 system of linear inequalities is represented by the graph?

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)