At the veterinarian’s office, terri learned that her dog weighed 4 times as much as her cat. together the pets weighed 40lbs. how much did the dog weigh

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.

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)