Order the numbers from least to greatest.
7,-3, 5, -0.8, 0.8, 10.-2

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

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 .