Eight cards drawn from 52, produces 752,538,150 combination.​

63.5 ft/min

Step-by-step explanation:

Given that:

A hiker is walking down a mountain.

For the first case:

She descended 1024 feet from the top of the mountain in 17 minutes after walking for 5978 feet.

For the second case:

She descended 500 more feet from the top of the mountain in 7 minutes after walking for 3927 feet.

Thus; the average rate of change in altitude of the hiker from her starting point to her ending point can be expressed as:

63.5 ft/min