The area of a pool floor is 476.625 square feet. The length of the pool floor is 15.5 feet. What is the width of the pool floor? I am giving 15 points for this or 10 thanks for the help I will also heart your work!

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