A(-1,2)b(-7,4) find the midpoint of ab

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

Just tell me how to set up the equation.

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?