Pass Holders: $75 a year plus $2 per movie Regular Moviegoers: $5.00 to see a movie

For what number of movies will the cost be the same for both members and nonmembers?

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.