Help me fast please I cant figure out this question

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.

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation