How much time has passed from the first clock to the second clock? The time passed is less than 12 hours

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 .

Anyone know these questions? i need ,.

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.