Y=1/2x+2 need answers on graph

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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.

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29