What are the coordinate points to this equation

Given f(t) = 282 - 53 +1, determine the function value f(2). do not include f(z) = in your answer

Asquare parking lot has 6,400 square meters what is the length in meters

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.