Does anyone know how to solve something like this?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

What is the slope of the equation y =

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .