Which equation is equivalent to the given equation? x^2-6x+8

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 .

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.