Ben has a side job where he stuffs envelopes for a business. If he can fill 36 envelopes in 30 minutes, how long will it take him to fill 48 envelopes?

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 .