What is 28 + 28 + 28 + 28

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

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.