What is the image of the point (−7,9) after a rotation of 270 ∘ counterclockwise about the origin?

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.

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Graph the system of equations on your graph paper to answer the question. {y=−x+4y=x−2 what is the solution for the system of equations? enter your answer in the boxes.