Day and Night Kennel charges $20 per day plus a food fee of $15 to board a pet. Home Away From Home Kennel charges $30 per day plus a food fee of $5. Which system represents this real-world situation?

We define variables:
 y: total amount
 x: number of days
 The system of equations is:
 y = 20x + 15
 y = 30x + 5
 The solution to the system is the ordered pair:
 (x, y) = (1, 35)
 Answer:
 (x, y) = (1, 35)
 Graphic number 2 (from left to right)