Can you solve this problem so that you can explain me as best as possible to understand the problem? It is called Combined Operations with fractions and I know that some will get the name confused but I think it is the same

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

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.