Find the value of x and y in parallelogram LMNP

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

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 .