What number can you divide 1/2 by to get an answer smaller than 1/2

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.

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

Say it if the radius of a circle is 6 inches how long is the subtended by an angle measuring 70 degree