Atoddler was given 12 boxes of crayons, each of which contained 12 crayons. within a week, he eventually lost half of the crayons and broke a quarter of the remaining crayons. how many intact crayons did the toddler have at the end of the week?

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.