Answer:
The correct answer to the question: How much will their three-night stay in the hotel cost them, would be: 387 dollars.
Explanation:
The reason for this being the answer comes from the fact that we need to multiply the cost of each night, which the question tells us is 129, with the total number of nights the Park family will remain in that hotel. This means that as each night costs 129 dollars, and it does not say if it is per person, or anything else, and also that the family will remain in the hotel for a total of 3 nights, then the operation needed is multiplication. Thus, the operation would be: 129 dollars x3 nights in the hotel = 387 dollars in total. So, the answer is the total cost of the hotel for the 3-night stay for the entire Park family will be 387 dollars.