Please answer!! I just need the estimate:))

2x+3y=12 x-y=6 solve the following system equations

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship

You are a male who just graduated from college with a bachelor's degree. you have a job paying $50,780.00/yr. a. how does your salary compare to the yearly median earnings for a male with a bachelor's degree? b. what is the difference between the yearly median earnings for a male with a bachelor's degree compared to a male who does not attend college after earning a high school diploma?