Question text not available

Correct Answer:

In this context, h(10) represents the altitude of the hot air balloon after 10 minutes. To find its value, substitute 10 for t in the function: h(10) = 210 - 15(10). This simplifies to h(10) = 210 - 150, which equals 60. Therefore, the altitude of the balloon after 10 minutes is 60 units.