Are awarded for first, second, and At a competition with 7 runners, medals
to
third places. Each of the 3 medals is different. How many ways are there to
award the medals?
Decide if this is a
permutation or a combination, and find the number of ways
to award the medals.

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point