Nellie's drama club is taking a trip by bus to see a performance at the Carmine Theater. The theater is 125 miles from Nellie's school. The bus driver plans to stop and refuel after 1.5 hours, then complete the trip. The bus driver plans to drive at an average speed of 50 miles per hour.
Which equation can you use to predict how many hours, x, the second part of the trip will take?