There are 5 red, 4 green and 3 blue points on a circle. Find the number of those line segments which have end points of different colors.

Tree diagram to find the prime factors of 18

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules