A salesperson's ratio of successful signups to the number of people called is 0.625. This month, the salesperson had 25 signups. How many people did the salesperson call this month?

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