Im bored who want to talk

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

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.

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?