Find the midpoint of the line segment.

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28