If 36 units is 75% how much is 100%

Find the slope of the line y =8/9x + 1.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

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.