Astore sells t-shirts $10 each and jeans for $20 a pair. anna spends $150 for t-shirts and jeans. she buys x t-shirts and y pairs of jeans. what is the equation and how many t-shirts can she buy with the money she has left.

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 .