PLS HELP EASY ANGLES GIVING BRIANLIEST PLS

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

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 .

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).