What is the answer to this proportion 50 points test score of 40% write it

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.

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0