Please help this is timed

20 points! asap! a is known to be 6,500 feet above sea level; ab = 600 feet. the angle at a looking up at p is 20°. the angle at b looking up at p is 35°. how far above sea level is the peak p? find the height of the mountain peak to the nearest foot. height above sea level =

1. what are the missing reasons in the proof 2. it's in the second picture and 3

Can you simplify 4/7? 24 points will be awarded!