Roses: $ 5.29 carnation: $3.59 tulip: $4.79 question: smantha wants to buy 6 roses , 4 carnations, and 8 tulips. she estimates that she will spend about $14 on these flowers. do you agree? me with these

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.