Which equation represents the cubic function with zeros -3,2,6 and a y-intercepts of -18?

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.

What’s the answer ? use the picture to see the problem

If there are 3.281 feet in 1 meter, how many inches are in one centimeter