Ronald is participating in a fun run to raise money for the West Side Children's Hospital. The run is held at Ronald's high school track. The more laps Ronald
runs around the track, the more money he raises for the hospital. There is a
proportional relationship between the number of laps Ronald runs, x, and the
amount of money he raises for the hospital (in dollars), y.
Ronald raises $10 if he runs 2 laps. Write the equation for the relationship between x and y.