A100-square grid has 70 shaded squares explain how you could express model as a fraction percent and decimal

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.

Find the value of the cosine for angle a

Multiply. write your answer in simplest form. 3/8 x 5/7