What the answer?!? Ty

You are measuring the dimensions of the floor in your bedroom because you are planning to buy new carpet. which unit of measure is the most appropriate to use in this situation?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2