each load of laundry cost 6 quarters at the laundromat indepentdent and dependent varible which is dependent and independent?

Find the total area for the regular pyramid ( follow the answer set up in the picture)

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

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 .