Final answer:
Marisol and Mee Young were traveling at an average speed of approximately 186.67 mph on Spain's AVE train from Madrid to Seville, making the best answer (d) 186 mph.
Step-by-step explanation:
The student is asking about the average speed of Spain's AVE train on a trip from Madrid to Seville, a distance of 336 miles, that took 1.8 hours. To solve for the average speed, we use the formula: average speed = total distance / total time. We then perform the calculation: 336 miles / 1.8 hours = 186.67 mph. Therefore, the average speed of the train was approximately 186.67 mph. Since the options are rounded, the closest answer is (d) 186 mph.