What is the domain and range of this function?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250

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?