Pls can someone help me will give brainliest. 7th grade math

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.

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12