Use communicate property to write an expression equivalent to -5d+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.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table