Two rectangles were used to form the following figure. The dimensions of the figure are shown in the diagram.

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).

Yahir designs bracelets. he uses between 9 and 15 red and yellow beads in the ratio of 2 red bead to 5 yellow beads. drag the beads into the container to meet these requirements