Camden is on a charter bus that has traveled 111 miles in 2 1/2 hours. at this rate, how many miles will the bus travel in the next 1/2 hour?

The bus will travel 22.2 miles in the next half-hour.

If the bus can travel 111 miles in 2.5 hours, dividing those numbers tells us that the bus is traveling 44.4 hours per hour.

Therefore, if it only travels a half hour, it can go half of 44.4.

44.4 / 2 = 22.2 

38 dollars is your answer.