Which expression is equivalent to the following complex fraction

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

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 .