Solving Systems of Inequalities

If we think about going on vacation and has at most $480 dollars to spend on food on the trip. Each day at least $25 per day is spent for food. Consider how much money is left after each day. The vacation should last at least 10 days. Create a system of equations, where $x$ represents the number of days on the vacation and $y$ represents the amount of money. Describe each part of the graph.