You will get but please help please please please

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

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points