James was making cupcakes for a bake sale. The recipe he had uses 2 eggs for every dozen (12) cupcakes. If James needed to make 18 cupcakes, how many eggs would he use?

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.