Angie has 12 feet of string. She will cut the string into equal legths of 5 inches each. How much string will be left after she cuts as many of these lengths as possible?

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