Final answer:
Subtract the burst balloons from the total and then divide the remainder by the number of rooms, resulting in 57 balloons per room.
Step-by-step explanation:
The student's question is about how many balloons would be in each room if the planner had to place them evenly into 5 rooms after 14 balloons burst. To solve this, we begin by subtracting the number of burst balloons from the total number purchased:
299 balloons – 14 burst balloons = 285 balloons
Next, we divide the 285 balloons evenly across 5 rooms:
285 balloons ÷ 5 rooms = 57 balloons per room
Therefore, the correct answer is C. 57 balloons in each room.